/* ==================================== */
void empilevoisins(int32_t x, int32_t rs, int32_t N, Fifo *FIFOna, Fifo *FIFOea, Fifo *FIFOsa, Fifo *FIFOoa)
/* ==================================== */
{
int32_t y, z, k;
/* x est un point qui vient de passer a 0 */
for (k = 0; k < 8; k++)
{
y = voisin(x, k, rs, N);
if ((y!=-1) && !IsSet(y,MINI) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{
z = voisin(y, NORD, rs, N);
if ((z != 0) && IsSet(z, MINI))
{ FifoPush(FIFOna, y); Set(y, EN_FIFO); goto nextk; }
z = voisin(y, SUD, rs, N);
if ((z != 0) && IsSet(z, MINI))
{ FifoPush(FIFOsa, y); Set(y, EN_FIFO); goto nextk; }
z = voisin(y, EST, rs, N);
if ((z != 0) && IsSet(z, MINI))
{ FifoPush(FIFOea, y); Set(y, EN_FIFO); goto nextk; }
z = voisin(y, OUEST, rs, N);
if ((z != 0) && IsSet(z, MINI))
{ FifoPush(FIFOoa, y); Set(y, EN_FIFO); goto nextk; }
}
nextk: ;
}
} /* empilevoisins() */
int* voisinageTriangle(std::vector<Triangle> listeTriangle){
int* voisinage = new int[3*listeTriangle.size()];
for(int i = 0; i<3*listeTriangle.size(); i++){
voisinage[i] = -1;
}
int indice = 0;
for(int i =0; i< listeTriangle.size(); i++){
indice = 0;
for(int j =0; j< listeTriangle.size(); j++){
if( !listeTriangle.at(i).compareTriangle(listeTriangle.at(j)) && voisin(listeTriangle.at(i), listeTriangle.at(j)) ){
voisinage[3*i + indice] = j;
indice++;
}
}
}
return voisinage;
}
/* ==================================== */
int32_t testabaisse(uint8_t *SOURCE,
int32_t x, int32_t rs, int32_t N, int32_t seuil, int32_t niter, int32_t niseuil)
/* ==================================== */
{
int32_t t4mm, t4m, t8p, t8pp;
int32_t modifie = 0;
#ifdef DEBUG
printf("testabaisse : point %d (%d %d), val = %d\n", x, x%rs, x/rs, SOURCE[x]);
#endif
nbtopo(SOURCE, x, rs, N, &t4mm, &t4m, &t8p, &t8pp);
if (t4mm == 2)
Set(x, COURBE);
#ifdef REGULARISE
if (IsSet(x, COURBE))
{
int32_t valmaxmin = -1;
int32_t k, y;
/*
si c'est un point de courbe "inconsistant", on l'abaisse
def. x inconsistant :
l'ecart entre F(x) et la valeur du minimum voisin le plus proche est < seuil
*/
for (k = 0; k < 8; k += 2) /* parcourt les voisins en 4-connexite */
{
y = voisin(x, k, rs, N);
if ((y != -1) && (IsSet(y, MINI)) && ((int32_t)(SOURCE[y]) > valmaxmin))
valmaxmin = (int32_t)(SOURCE[y]);
} /* for k */
if ((valmaxmin > -1) && ((SOURCE[x] - (uint8_t)valmaxmin) < seuil))
{
modifie = 1;
SOURCE[x] = (uint8_t)valmaxmin;
UnSet(x, COURBE);
}
}
#endif
/* if (!IsSet(x, COURBE) && */
if ((niter <= niseuil) || !extremite8(SOURCE, x, rs, N))
{
while ((t4mm == 1) && (t8p == 1))
{
modifie = 1;
SOURCE[x] = alpha8m(SOURCE, x, rs, N);
nbtopo(SOURCE, x, rs, N, &t4mm, &t4m, &t8p, &t8pp);
}
} /* if (!extremite8(SOURCE, x, rs, N)) */
#ifdef DEBUG
if (modifie) printf("========> ABAISSE : %d\n", SOURCE[x]);
#endif
return modifie;
} /* testabaisse() */
/* ==================================== */
void testmini(uint8_t *SOURCE, int32_t x, int32_t rs, int32_t N, Fifo *FIFO)
/* ==================================== */
{
int32_t k, y, kk, yy, w;
uint8_t valmin;
#ifdef REGULARISE
for (k = 0; k < 8; k += 2) /* parcourt les voisins en 4-connexite */
{ /* pour voir s'il existe un minimum voisin */
y = voisin(x, k, rs, N); /* a un niveau > a celui atteint par x */
if ((y != -1) && (IsSet(y, MINI)) && (SOURCE[y] > SOURCE[x]))
{ /* ce n'est plus un minimum */
FifoPush(FIFO, y);
UnSet(y, MINI);
valmin = SOURCE[y];
while (! FifoVide(FIFO)) /* parcours pour demarquer l'ex minimum */
{
w = FifoPop(FIFO);
for (kk = 0; kk < 8; kk += 2)
{
yy = voisin(w, kk, rs, N);
if ((yy != -1) && (SOURCE[yy] == valmin) && (IsSet(yy, MINI)))
{
FifoPush(FIFO, yy);
UnSet(yy, MINI);
}
} /* for kk ... */
} /* while (! FifoVide(FIFO)) */
} /* if ((y != -1) && (IsSet(y, MINI)) && (SOURCE[y] > SOURCE[x])) */
} /* for k */
#endif
for (k = 0; k < 8; k += 2) /* parcourt les voisins en 4-connexite */
{ /* pour voir s'il existe un minimum */
y = voisin(x, k, rs, N); /* au niveau atteint par x */
if ((y != -1) && (IsSet(y, MINI)) && (SOURCE[y] == SOURCE[x]))
{
Set(x, MINI);
break;
}
} /* for k */
} /* testmini() */
/* ==================================== */
int32_t lerosfast(struct xvimage *f, uint8_t *mask)
/* mask : masque du 8-voisinage representant l'element structurant */
/* ==================================== */
{
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t k; /* index muet */
int32_t rs = rowsize(f); /* taille ligne */
int32_t cs = colsize(f); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *F = UCHARDATA(f);
uint8_t *H; /* image de travail */
uint8_t inf;
if (depth(f) != 1)
{
fprintf(stderr, "ldilatfast: cette version ne traite pas les images volumiques\n");
return 0;
}
H = (uint8_t *)calloc(1,N*sizeof(char));
if (H == NULL)
{ fprintf(stderr,"lerosfast() : malloc failed for H\n");
return(0);
}
for (x = 0; x < N; x++) H[x] = F[x];
for (x = 0; x < N; x++)
{
inf = H[x]; /* l'ES est reflexif */
for (k = 0; k < 8; k += 1)
{
if (mask[k]) /* element structurant */
{
y = voisin(x, k, rs, N);
if ((y != -1) && (H[y] < inf)) inf = H[y];
#ifdef BORDZERO
if (y == -1) inf = NDG_MIN;
#endif
}
} /* for k */
F[x] = inf;
}
free(H);
return 1;
}
/* ==================================== */
int32_t abaisse8(int32_t x, int32_t *DT, int32_t rs, int32_t N)
/* ==================================== */
{
int32_t y, k, abaisse;
int32_t t4mm, t4m, t8p, t8pp;
uint32_t d, old;
old = DT[x];
do
{
abaisse = 0;
nbtopoh_l(DT, x, DT[x], rs, N, &t4mm, &t4m, &t8p, &t8pp);
if ((t8p == 1) && (t4mm == 1))
{
nbtopoh_l(DT, x, DT[x]-1, rs, N, &t4mm, &t4m, &t8p, &t8pp);
if ((t8p == 1) && (t4mm == 1))
{
d = alpha8m_l(DT, x, rs, N);
d = mcmin((DT[x]-1),(d+1));
DT[x] = d;
abaisse = 1;
#ifdef DEBUG
printf("pre-abaisse a d = %ld\n", d);
#endif
#ifndef OLD_VERSION
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{
y = voisin(x, k, rs, N);
if ((y != -1) && (DT[y] <= DT[x]) && (DT[y]==alpha8p_l(DT, y, rs, N)))
{
DT[x] += 1; abaisse = 0; break;
} /* if y */
} /* for k */
#endif
}
} // if ((t8p == 1) && (t4mm == 1))
} while (abaisse);
if (DT[x] < old) return 1; else return 0;
} // abaisse8()
/* ==================================== */
int32_t ldir(struct xvimage * image1, int32_t dir)
/* ==================================== */
{
int32_t i, v;
uint8_t *pt1;
int32_t rs, cs, N;
if (depth(image1) != 1)
{
fprintf(stderr, "ldir: cette version ne traite pas les images volumiques\n");
return 0;
}
rs = rowsize(image1);
cs = colsize(image1);
N = rs * cs;
IndicsInit(N);
/* ---------------------------------------------------------- */
/* calcul du resultat */
/* ---------------------------------------------------------- */
pt1 = UCHARDATA(image1);
for (i = 0; i < N; i++)
if (pt1[i])
{
v = voisin(i, dir, rs, N);
if ((v != -1) && (pt1[v] < pt1[i]))
Set(i,0);
}
for (i = 0; i < N; i++) if (IsSet(i,0)) pt1[i] = NDG_MAX; else pt1[i] = NDG_MIN;
IndicsTermine();
return 1;
}
/* ==================================== */
int32_t lsquelval(struct xvimage *image, // entree/sortie: image originale / squelette
struct xvimage *dx, // entree/sortie: distance / distance topologique
int32_t connex,
int32_t val_inhibit)
/* ==================================== */
#undef F_NAME
#define F_NAME "lsquelval"
{
int32_t k;
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t N = rs * cs; /* taille image */
struct xvimage *dt; /* pour le calcul de la "distance topologique" */
uint8_t *IM = UCHARDATA(image); /* l'image de depart */
uint32_t *DX; /* fonction distance au complementaire de IM */
uint32_t *DT; /* fonction "distance topologique" */
uint32_t d;
Rbt * RBT;
int32_t taillemaxrbt;
IndicsInit(N);
if ((rowsize(dx) != rs) || (colsize(dx) != cs) || (depth(dx) != 1))
{
fprintf(stderr, "%s() : bad size for dx\n", F_NAME);
return(0);
}
if (datatype(dx) != VFF_TYP_4_BYTE)
{
fprintf(stderr, "%s() : datatype(dx) must be uint32_t\n", F_NAME);
return(0);
}
DX = ULONGDATA(dx);
dt = copyimage(dx);
DT = ULONGDATA(dt);
taillemaxrbt = 2 * rs + 2 * cs ;
/* cette taille est indicative, le RBT est realloue en cas de depassement */
RBT = mcrbt_CreeRbtVide(taillemaxrbt);
if (RBT == NULL)
{
fprintf(stderr, "%s() : mcrbt_CreeRbtVide failed\n", F_NAME);
return(0);
}
/* ================================================ */
/* PREMIERE PHASE */
/* ================================================ */
#ifdef VERBOSE
printf("1ere etape\n");
#endif
// INITIALISATION DT
for (x = 0; x < N; x++) if (IM[x]) DT[x] = INFINI; else DT[x] = 0;
// INITIALISATION DU RBT
for (x = 0; x < N; x++)
if (IM[x] && (DX[x] != val_inhibit) && bordext8(IM, x, rs, N))
{
mcrbt_RbtInsert(&RBT, DX[x], x);
Set(x, EN_RBT);
} // if, for
d = 1;
if (connex == 4)
{
while (!mcrbt_RbtVide(RBT))
{
x = RbtPopMin(RBT);
UnSet(x, EN_RBT);
#ifdef DEBUG
printf("pop x = %d,%d, im = %d, dx = %ld\n", x%rs, x/rs, IM[x], DX[x]);
#endif
if (simple4(IM, x, rs, N))
{
DT[x] = d;
IM[x] = 0;
d++;
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (IM[y]) && (DX[y] != val_inhibit) && (! IsSet(y, EN_RBT)))
{
mcrbt_RbtInsert(&RBT, DX[y], y);
Set(y, EN_RBT);
} /* if y */
} /* for k */
} // if (simple4(IM, x, rs, N))
} /* while (!mcrbt_RbtVide(RBT)) */
} /* if (connex == 4) */
else
if (connex == 8)
{
while (!mcrbt_RbtVide(RBT))
{
x = RbtPopMin(RBT);
UnSet(x, EN_RBT);
#ifdef DEBUG
printf("pop x = %d,%d, im = %d, dx = %ld\n", x%rs, x/rs, IM[x], DX[x]);
#endif
if (simple8(IM, x, rs, N))
{
DT[x] = d;
IM[x] = 0;
d++;
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (IM[y]) && (DX[y] != val_inhibit) && (! IsSet(y, EN_RBT)))
{
mcrbt_RbtInsert(&RBT, DX[y], y);
Set(y, EN_RBT);
} /* if y */
} /* for k */
} // if (simple8(IM, x, rs, N))
} /* while (!mcrbt_RbtVide(RBT)) */
} /* if (connex == 8) */
#ifdef DEBUG
writeimage(dt, "_dt");
#endif
/* ================================================ */
/* SECONDE PHASE */
/* ================================================ */
#ifdef SECONDE_PHASE
stabilite = 0;
while (!stabilite)
{
#ifdef VERBOSE
printf("2eme etape\n");
#endif
stabilite = 1;
// INITIALISATION DU RBT
for (j = 1; j < cs-1; j++)
for (i = 1; i < rs-1; i++)
{
x = j * rs + i;
if (DT[x] && (DT[x] != INFINI)) mcrbt_RbtInsert(&RBT, DT[x], x);
}
if (connex == 4)
{
while (!mcrbt_RbtVide(RBT))
{
x = RbtPopMin(RBT);
#ifdef DEBUG
printf("pop x = %d,%d, dt = %ld\n", x%rs, x/rs, DT[x]);
#endif
if (abaisse4(x, DT, rs, N))
{
stabilite = 0;
#ifdef DEBUG
printf("abaisse a %ld\n", DT[x]);
#endif
} // if (abaisse4(x, DT, rs, N))
} // while (!mcrbt_RbtVide(RBT))
} // if (connex == 4)
else
if (connex == 8)
{
int32_t abaisse;
while (!mcrbt_RbtVide(RBT))
{
x = RbtPopMin(RBT);
#ifdef DEBUG
printf("pop x = %d,%d, dt = %d\n", x%rs, x/rs, DT[x]);
#endif
if (abaisse8(x, DT, rs, N))
{
stabilite = 0;
#ifdef DEBUG
printf("abaisse a %ld\n", DT[x]);
#endif
} // if (abaisse8(x, DT, rs, N))
} // while (!mcrbt_RbtVide(RBT))
} // if (connex == 8)
} // while (!stabilite)
#endif
// RECUPERATION DU RESULTAT
d = 0; // valeur pour l'infini: plus grande valeur finie + 1
for (x = 0; x < N; x++) if ((DT[x] > d) && (DT[x] < INFINI)) d = DT[x];
d += 1;
for (x = 0; x < N; x++) if (DT[x] == INFINI) DX[x] = d; else DX[x] = DT[x];
/* ================================================ */
/* UN PEU DE MENAGE */
/* ================================================ */
IndicsTermine();
mcrbt_RbtTermine(RBT);
freeimage(dt);
return(1);
} /* lsquelval() */
/* ==================================== */
int32_t lattribute(
struct xvimage *img, /* image de depart */
int32_t connex, /* 4, 8 */
int32_t typregion, /* = <LABMIN | LABMAX | LABPLATEAU> */
int32_t attrib, /* 0: surface, 1: perimetre, 2: circularite, 3: nb. trous,
4: excentricite, 5: orientation, 6: diamètre vertical, 7: diamètre horizontal */
int32_t seuil, /* en dessous (<=) de seuil, l'attribut est mis a 0 */
struct xvimage *lab, /* resultat: image d'attributs */
int32_t *nlabels) /* resultat: nombre de regions traitees */
/* ==================================== */
#undef F_NAME
#define F_NAME "lattribute"
{
int32_t k, l;
index_t w, x, y, z;
uint8_t *SOURCE = UCHARDATA(img);
int32_t *LABEL = SLONGDATA(lab);
index_t rs = rowsize(img);
index_t cs = colsize(img);
index_t d = depth(img);
index_t N = rs * cs; /* taille image */
Lifo * LIFO;
int32_t label;
int32_t area;
int32_t perim;
int32_t min, max;
int32_t val_attrib;
double mx1, my1; // cumuls des variables x et y
double mx2, my2, mxy2; // cumuls des x^2, y^2 et xy
int32_t incr_vois;
if (datatype(lab) != VFF_TYP_4_BYTE)
{
fprintf(stderr, "%s: le resultat doit etre de type VFF_TYP_4_BYTE\n", F_NAME);
return 0;
}
if ((rowsize(lab) != rs) || (colsize(lab) != cs) || (depth(lab) != d))
{
fprintf(stderr, "%s: tailles images incompatibles\n", F_NAME);
return 0;
}
if (depth(img) != 1)
{
fprintf(stderr, "%s: cette version ne traite pas les images volumiques\n", F_NAME);
exit(0);
}
switch (connex)
{
case 4: incr_vois = 2; break;
case 8: incr_vois = 1; break;
default:
fprintf(stderr, "%s: mauvaise connexite: %d\n", F_NAME, connex);
return 0;
} /* switch (connex) */
/* le LABEL initialement est mis a NONMARQUE */
for (x = 0; x < N; x++) LABEL[x] = NONMARQUE;
LIFO = CreeLifoVide(N);
if (LIFO == NULL)
{ fprintf(stderr, "%s: CreeLifoVide failed\n", F_NAME);
return(0);
}
*nlabels = 0;
if ((typregion == LABMIN) || (typregion == LABMAX))
{
for (x = 0; x < N; x++)
{
if (LABEL[x] == NONMARQUE) /* on trouve un point x non etiquete */
{
*nlabels += 1;
LABEL[x] = MARQUE;
#ifdef DEBUGTROU
printf("AMORCE p=%d,%d h=%d set LABEL = %d\n", x%rs, x/rs, SOURCE[x], LABEL[x]);
#endif
switch (attrib) /* on initialise les attributs de cette composante */
{
case AREA: val_attrib = 0; break;
case PERIM: val_attrib = 0; break;
case TROUS: val_attrib = 0; break;
case CIRC: area = perim = 0; break;
case EXCEN:
case ORIEN: area = 0; mx1 = my1 = mx2 = my2 = mxy2 = 0.0; break;
case VDIAM: min = cs-1; max = 0; break;
case HDIAM: min = rs-1; max = 0; break;
default:
fprintf(stderr, "%s: mauvais attribut: %d\n", F_NAME, attrib);
return 0;
} /* switch (attrib) */
LifoPush(LIFO, x); /* on va parcourir le plateau auquel appartient x */
while (! LifoVide(LIFO))
{
w = LifoPop(LIFO);
label = LABEL[w];
if (label == MARQUE) /* c'est une propagation de "marquage" : pour l'instant, */
{ /* on croit qu'on est dans un extremum */
switch (attrib)
{
case AREA: val_attrib++; break;
case VDIAM: if (w/rs < min) min = w/rs; else if (w/rs > max) max = w/rs; break;
case HDIAM: if (w%rs < min) min = w%rs; else if (w%rs > max) max = w%rs; break;
case EXCEN:
case ORIEN: area++; mx1 += w%rs; my1 += w/rs; mxy2 += (w%rs) * (w/rs);
mx2 += (w%rs) * (w%rs); my2 += (w/rs) * (w/rs); break;
case PERIM:
if (w%rs==rs-1) val_attrib++; /* point de bord */
if (w<rs) val_attrib++; /* point de bord */
if (w%rs==0) val_attrib++; /* point de bord */
if (w>=N-rs) val_attrib++; /* point de bord */
for (k = 0; k < 8; k += 2) /* 4-connexite obligatoire */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (SOURCE[y] != SOURCE[w])) val_attrib++;
} /* for k */
break;
case CIRC:
area++;
if (w%rs==rs-1) perim++; /* point de bord */
if (w<rs) perim++; /* point de bord */
if (w%rs==0) perim++; /* point de bord */
if (w>=N-rs) perim++; /* point de bord */
for (k = 0; k < 8; k += 2) /* 4-connexite obligatoire */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (SOURCE[y] != SOURCE[w])) perim++;
} /* for k */
break;
} /* switch (attrib) */
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(w, k, rs, N);
if (y != -1)
{
if (((typregion == LABMIN) && (SOURCE[y] < SOURCE[w])) ||
((typregion == LABMAX) && (SOURCE[y] > SOURCE[w])))
{ /* w non dans un minimum (resp. maximum) */
if (label == MARQUE)
{
label = NONEXTREM;
*nlabels -= 1;
LABEL[w] = label;
LifoPush(LIFO, w);
}
}
else
if ((SOURCE[y] == SOURCE[w]) && (LABEL[y] == NONMARQUE))
{
LABEL[y] = label;
#ifdef DEBUGTROU
printf(" p=%d,%d h=%d set LABEL = %d\n", y%rs, y/rs, SOURCE[y], LABEL[y]);
#endif
LifoPush(LIFO, y);
if (attrib == TROUS)
{
int32_t masque = 0, imasque = 1;
/* fabrique le masque des voisins de y MARQUES */
for (l = 0; l < 8; l += 1)
{
z = voisin(y, l, rs, N);
if ((z != -1) && (LABEL[z] == MARQUE))
masque |= imasque;
imasque = imasque << 1;
} /* for k ... */
#ifdef DEBUGTROU
printf(" p=%d,%d h=%d masque=%x t4m=%d t8b=%d\n", y%rs, y/rs, SOURCE[y], masque, t4(masque), t8b(masque));
#endif
if (connex == 4)
{ val_attrib += (t4(masque) - 1); if (t8b(masque) == 0) val_attrib--; }
else
{ val_attrib += (t8(masque) - 1); if (t4b(masque) == 0) val_attrib--; }
} /* if (attrib == TROUS) */
} /* if ((SOURCE[y] == SOURCE[w]) && (LABEL[y] == NONMARQUE)) */
} /* if (y != -1) */
} /* for k ... */
} /* if (label == MARQUE) */
else /* propagation de "demarquage" */
{
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(w, k, rs, N);
if (y != -1)
{
if ((SOURCE[y] == SOURCE[w]) && (LABEL[y] != NONEXTREM))
{
LABEL[y] = NONEXTREM;
LifoPush(LIFO, y);
} /* if .. */
} /* if (y != -1) */
} /* for k ... */
} /* else if (label == MARQUE) */
} /* while (! LifoVide(LIFO)) */
if (label == MARQUE)
{
if (attrib == CIRC)
{
val_attrib = (int32_t)(256 * 4 * M_PI * (double)area / (double)(perim * perim));
if (val_attrib > 255)
{
fprintf(stderr, "WARNING: indice de circularite > 255 : %d, a=%d, p=%d\n",
val_attrib, area, perim);
val_attrib = 255;
}
}
if (attrib == EXCEN) val_attrib = excentricity(mx1, my1, mx2, my2, mxy2, area);
if (attrib == ORIEN) val_attrib = orientation(mx1, my1, mx2, my2, mxy2, area);
if (attrib == VDIAM) val_attrib = max - min + 1;
if (attrib == HDIAM) val_attrib = max - min + 1;
if (val_attrib <= seuil) val_attrib = 0;
#ifdef VERBOSE
printf("valeur attribut = %d\n", val_attrib);
#endif
LifoPush(LIFO, x); /* on re-parcourt le plateau pour propager l'attribut */
LABEL[x] = val_attrib;
while (! LifoVide(LIFO))
{
w = LifoPop(LIFO);
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(w, k, rs, N);
if ((y != -1) && (LABEL[y] == MARQUE))
{
LABEL[y] = val_attrib;
LifoPush(LIFO, y);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (label == MARQUE) */
} /* if (LABEL[x] != -1) */
} /* for (x = 0; x < N; x++) */
} /* if ((typregion == LABMIN) || (typregion == LABMAX)) */
else
{
if (attrib == TROUS)
{
fprintf(stderr, "%s: attribut TROUS non compatible avec typreg = PLA\n", F_NAME);
return 0;
}
for (x = 0; x < N; x++)
{
if (LABEL[x] == NONMARQUE)
{
*nlabels += 1;
LABEL[x] = *nlabels;
switch (attrib) /* on initialise les attributs de cette composante */
{
case AREA: val_attrib = 0; break;
case VDIAM: min = cs-1; max = 0; break;
case HDIAM: min = rs-1; max = 0; break;
case PERIM: val_attrib = 0; break;
case CIRC: area = perim = 0; break;
case EXCEN:
case ORIEN: area = 0; mx1 = my1 = mx2 = my2 = mxy2 = 0.0; break;
default:
fprintf(stderr, "%s: mauvais attribut: %d\n", F_NAME, attrib);
return 0;
} /* switch (attrib) */
LifoPush(LIFO, x);
while (! LifoVide(LIFO))
{
w = LifoPop(LIFO);
switch (attrib)
{
case AREA: val_attrib++; break;
case VDIAM: if (w/rs < min) min = w/rs; else if (w/rs > max) max = w/rs; break;
case HDIAM: if (w%rs < min) min = w%rs; else if (w%rs > max) max = w%rs; break;
case EXCEN:
case ORIEN: area++; mx1 += w%rs; my1 += w/rs; mxy2 += (w%rs) * (w/rs);
mx2 += (w%rs) * (w%rs); my2 += (w/rs) * (w/rs); break;
case PERIM:
if (w%rs==rs-1) val_attrib++; /* point de bord */
if (w<rs) val_attrib++; /* point de bord */
if (w%rs==0) val_attrib++; /* point de bord */
if (w>=N-rs) val_attrib++; /* point de bord */
for (k = 0; k < 8; k += 2) /* 4-connexite obligatoire */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (SOURCE[y] != SOURCE[w])) val_attrib++;
} /* for k */
break;
case CIRC:
area++;
if (w%rs==rs-1) perim++; /* point de bord */
if (w<rs) perim++; /* point de bord */
if (w%rs==0) perim++; /* point de bord */
if (w>=N-rs) perim++; /* point de bord */
for (k = 0; k < 8; k += 2) /* 4-connexite obligatoire */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (SOURCE[y] != SOURCE[w])) perim++;
} /* for k */
break;
} /* switch (attrib) */
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(w, k, rs, N);
if ((y != -1) && (LABEL[y] == NONMARQUE) && (SOURCE[y] == SOURCE[w]))
{
LABEL[y] = MARQUE;
LifoPush(LIFO, y);
} /* if y ... */
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
if (attrib == CIRC)
{
val_attrib = (int32_t)(256 * 4 * M_PI * (double)area / (double)(perim * perim));
if (val_attrib > 255)
{
fprintf(stderr, "WARNING: indice de circularite > 255 : %d, a=%d, p=%d\n",
val_attrib, area, perim);
val_attrib = 255;
}
}
if (attrib == EXCEN) val_attrib = excentricity(mx1, my1, mx2, my2, mxy2, area);
if (attrib == ORIEN) val_attrib = orientation(mx1, my1, mx2, my2, mxy2, area);
if (attrib == VDIAM) val_attrib = max - min + 1;
if (attrib == HDIAM) val_attrib = max - min + 1;
if (val_attrib <= seuil) val_attrib = 0;
LifoPush(LIFO, x); /* on re-parcourt le plateau pour propager l'attribut */
LABEL[x] = val_attrib;
while (! LifoVide(LIFO))
{
w = LifoPop(LIFO);
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(w, k, rs, N);
if ((y != -1) && (LABEL[y] == MARQUE))
{
LABEL[y] = val_attrib;
LifoPush(LIFO, y);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (LABEL[x] == NONMARQUE) */
} /* for (x = 0; x < N; x++) */
} /* else if ((typregion == LABMIN) || (typregion == LABMAX)) */
LifoTermine(LIFO);
*nlabels += 1; /* pour le niveau 0 */
return(1);
} // lattribute()
/* ==================================== */
int32_t lnbvois(
struct xvimage * image,
int32_t connex)
/* ==================================== */
{
int32_t nvois, k;
int32_t p, q;
int32_t rs = rowsize(image);
int32_t cs = colsize(image);
int32_t ds = depth(image);
int32_t ps = rs * cs; /* taille plan */
int32_t N = ps * ds; /* taille image */
uint8_t *F = UCHARDATA(image); /* l'image de depart */
switch (connex)
{
case 4:
for (p = 0; p < N; p++)
if (F[p])
{
nvois = 0; /* compte le nombre de voisins non nuls */
for (k = 0; k < 8; k += 2)
{
q = voisin(p, k, rs, N);
if ((q != -1) && (F[q])) nvois++;
}
F[p] = nvois;
}
break;
case 8:
for (p = 0; p < N; p++)
if (F[p])
{
nvois = 0; /* compte le nombre de voisins non nuls */
for (k = 0; k < 8; k += 1)
{
q = voisin(p, k, rs, N);
if ((q != -1) && (F[q])) nvois++;
}
F[p] = nvois;
}
break;
case 6:
for (p = 0; p < N; p++)
if (F[p])
{
nvois = 0; /* compte le nombre de voisins non nuls */
for (k = 0; k <= 10; k += 2)
{
q = voisin6(p, k, rs, ps, N);
if ((q != -1) && (F[q])) nvois++;
}
F[p] = nvois;
}
break;
case 18:
for (p = 0; p < N; p++)
if (F[p])
{
nvois = 0; /* compte le nombre de voisins non nuls */
for (k = 0; k < 18; k += 1)
{
q = voisin18(p, k, rs, ps, N);
if ((q != -1) && (F[q])) nvois++;
}
F[p] = nvois;
}
break;
case 26:
for (p = 0; p < N; p++)
if (F[p])
{
nvois = 0; /* compte le nombre de voisins non nuls */
for (k = 0; k < 26; k += 1)
{
q = voisin26(p, k, rs, ps, N);
if ((q != -1) && (F[q])) nvois++;
}
F[p] = nvois;
}
break;
default:
fprintf(stderr, "lnbvois: mauvaise connexite: %d\n", connex);
return 0;
} /* switch (connex) */
return 1;
}
/* ==================================== */
int32_t ldilatbin_ldilatbin(struct xvimage *f, struct xvimage *m, int32_t xc, int32_t yc)
/* m : masque representant l'element structurant */
/* xc, yc : coordonnees de l'origine de l'element structurant */
/* ==================================== */
{
int32_t x, y, z, w; /* index muet de pixel */
register int32_t i, j; /* index muet */
register int32_t k, l; /* index muet */
int32_t rs = rowsize(f); /* taille ligne */
int32_t cs = colsize(f); /* taille colonne */
int32_t N = rs * cs; /* taille image */
int32_t rsm = rowsize(m); /* taille ligne masque */
int32_t csm = colsize(m); /* taille colonne masque */
int32_t Nm = rsm * csm;
uint8_t *M = UCHARDATA(m);
uint8_t *F = UCHARDATA(f);
uint8_t *H; /* image de travail */
uint8_t sup;
int32_t nptb; /* nombre de points de l'e.s. */
int32_t *tab_es_x; /* liste des coord. x des points de l'e.s. */
int32_t *tab_es_y; /* liste des coord. y des points de l'e.s. */
int32_t c;
int32_t frontiere;
if (depth(f) != 1)
{
fprintf(stderr, "ldilatbin_ldilatbin: cette version ne traite pas les images volumiques\n");
return 0;
}
if (!M[yc * rsm + xc]) /* l'element structurant N'est PAS reflexif */
{
fprintf(stderr, "ldilatbin_ldilatbin: l'element structurant doit etre reflexif\n");
return 0;
}
H = (uint8_t *)calloc(1,N*sizeof(char));
if (H == NULL)
{
fprintf(stderr,"ldilatbin_ldilatbin() : malloc failed for H\n");
return(0);
}
memcpy(H, F, N);
nptb = 0;
for (i = 0; i < Nm; i += 1)
if (M[i])
nptb += 1;
tab_es_x = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_y = (int32_t *)calloc(1,nptb * sizeof(int32_t));
if ((tab_es_x == NULL) || (tab_es_y == NULL))
{
fprintf(stderr,"ldilatbin_ldilatbin() : malloc failed for tab_es\n");
return(0);
}
k = 0;
for (j = 0; j < csm; j += 1)
for (i = 0; i < rsm; i += 1)
if (M[j * rsm + i])
{
tab_es_x[k] = i;
tab_es_y[k] = j;
k += 1;
}
for (y = 0; y < cs; y++)
for (x = 0; x < rs; x++)
{
/* verifie si (x,y) est un point de la frontiere de l'objet */
w = y * rs + x;
if (H[w])
{
frontiere = 0;
for (k = 0; k < 8; k += 2) /* on cherche une frontiere 8-connexe */
{
z = voisin(w, k, rs, N);
if ((z != -1) && (!H[z])) { frontiere = 1; break; }
} /* for k... */
if (!frontiere)
F[w] = NDG_MAX;
else
{
for (c = 0; c < nptb ; c += 1)
{
l = y + tab_es_y[c] - yc;
k = x + tab_es_x[c] - xc;
if ((l >= 0) && (l < cs) && (k >= 0) && (k < rs))
F[l * rs + k] = NDG_MAX;
}
}
}
}
free(H);
free(tab_es_x);
free(tab_es_y);
return 1;
}
/* ==================================== */
int32_t lpropgeo(
struct xvimage *img1,
struct xvimage *mask,
int32_t connex,
int32_t function
)
/* ==================================== */
#undef F_NAME
#define F_NAME "lpropgeo"
{
int32_t k;
int32_t w;
int32_t x;
int32_t y;
uint8_t min;
uint8_t max;
uint8_t moy;
uint8_t minb;
uint8_t maxb;
uint8_t moyb;
uint8_t valcomp;
int32_t valcomplong;
int32_t mintrouve;
int32_t maxtrouve;
int32_t moytrouve;
int32_t incr_vois;
int32_t incr_voisb;
int32_t sumndg; /* pour calculer la moyenne sur la composante */
int32_t surf; /* pour calculer la surface de la composante */
int32_t sumndgb; /* pour calculer la moyenne sur le bord */
int32_t sumndgc; /* pour calculer la variance sur le bord */
int32_t surfb; /* pour calculer la surface du bord */
double moybd; /* moyenne sur le bord */
double devb; /* deviation (ecart-type) sur le bord */
int32_t tmp;
uint8_t *SOURCE = UCHARDATA(img1);
uint8_t *MASK = UCHARDATA(mask);
int32_t *MASKLONG = SLONGDATA(mask);
int32_t rs = rowsize(img1);
int32_t cs = colsize(img1);
int32_t N = rs * cs;
Lifo * LIFO;
#ifdef PERF
chrono chrono1;
#endif
if (depth(img1) != 1)
{
fprintf(stderr, "%s: cette version ne traite pas les images volumiques\n", F_NAME);
return 0;
}
if (img1->data_storage_type != VFF_TYP_1_BYTE)
return lpropgeolong(img1, mask, connex, function);
if ((rowsize(mask) != rs) || (colsize(mask) != cs))
{
fprintf(stderr, "%s: incompatible image sizes\n", F_NAME);
return 0;
}
switch (connex)
{
case 4: incr_vois = 2; incr_voisb = 1; break;
case 8: incr_vois = 1; incr_voisb = 2; break;
default:
fprintf(stderr, "%s: mauvaise connexite: %d\n", F_NAME, connex);
return 0;
} /* switch (connex) */
#ifdef PERF
/* pour l'analyse de performances */
start_chrono(&chrono1);
#endif
IndicsInit(N);
LIFO = CreeLifoVide(N);
if (LIFO == NULL)
{ fprintf(stderr, "%s: CreeLifoVide failed\n", F_NAME);
return(0);
}
if (mask->data_storage_type == VFF_TYP_1_BYTE)
{
for (x = 0; x < N; x++) /* recherche dans toute l'image */
{
if (!MASK[x]) SOURCE[x] = NDG_MIN;
if (MASK[x] && (!IsSet(x, TRAITE1))) /* on est dans une CC non traitee */
{
valcomp = MASK[x];
LifoPush(LIFO, x);
Set(x, TRAITE1);
min = SOURCE[x];
max = SOURCE[x];
minb = NDG_MAX;
maxb = NDG_MIN;
sumndg = 0;
surf = 0;
sumndgb = 0;
sumndgc = 0;
surfb = 0;
while (! LifoVide(LIFO)) /* parcourt la CC */
{
w = LifoPop(LIFO);
if ((SOURCE[w] < min)) min = SOURCE[w];
if ((SOURCE[w] > max)) max = SOURCE[w];
surf += 1;
sumndg += SOURCE[w];
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == valcomp) && (!IsSet(y, TRAITE1)))
{
LifoPush(LIFO, y);
Set(y, TRAITE1);
}
} /* for k ... */
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{
y = voisin(w, k, rs, N);
#ifdef VALEURTABOUE
if ((y != -1) && (MASK[y] == 0) && (!IsSet(y, TRAITE1)) && (SOURCE[y] != VALEURTABOUE))
#else
if ((y != -1) && (MASK[y] == 0) && (!IsSet(y, TRAITE1)))
#endif
{
if ((SOURCE[y] < minb)) minb = SOURCE[y];
if ((SOURCE[y] > maxb)) maxb = SOURCE[y];
surfb += 1;
sumndgb += SOURCE[y];
sumndgc += SOURCE[y] * SOURCE[y];
Set(y, TRAITE1);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
moy = (uint8_t)(sumndg/surf);
if (surfb > 0) { moyb = (uint8_t)(sumndgb/surfb); moybd = ((double)sumndgb)/surfb; }
else { moyb = 0; moybd = 0.0; }
devb = sqrt(((double)sumndgc)/surfb - ((double)sumndgb * sumndgb)/(surfb * surfb));
#ifdef DEBUG
printf("composante %d - surf=%d ; sumndg=%d ; surfb=%d ; sumndgb=%d ; max=%d\n",
valcomplong, surf, sumndg, surfb, sumndgb, max);
#endif
LifoPush(LIFO, x);
Set(x, TRAITE2);
mintrouve = 0;
maxtrouve = 0;
moytrouve = 0;
while (! LifoVide(LIFO)) /* RE-parcourt la CC */
{
w = LifoPop(LIFO);
switch (function)
{
case MIN1:
if ((SOURCE[w] == min) && !mintrouve) { Set(w, MINIMUM); mintrouve = 1; }
break;
case MAX1:
if ((SOURCE[w] == max) && !maxtrouve) { Set(w, MAXIMUM); maxtrouve = 1; }
break;
case MOY1:
if ((SOURCE[w] == moy) && !moytrouve) { Set(w, MOYEN); moytrouve = 1; }
break;
case MIN:
SOURCE[w] = min;
break;
case MAX:
SOURCE[w] = max;
break;
case MOY:
SOURCE[w] = moy;
break;
case MINB:
SOURCE[w] = minb;
break;
case MAXB:
SOURCE[w] = maxb;
break;
case MOYB:
SOURCE[w] = moyb;
break;
case RANDB:
tmp = (int32_t)Normal(moybd, devb);
if (tmp > (int32_t)NDG_MAX) tmp = (int32_t)NDG_MAX;
if (tmp < (int32_t)NDG_MIN) tmp = (int32_t)NDG_MIN;
SOURCE[w] = (uint8_t)tmp;
break;
default:
fprintf(stderr, "%s: bad argument\n", F_NAME);
return(0);
}
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{ /* pour les demarquer (TRAITE1) */
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == 0) && (IsSet(y, TRAITE1)))
UnSet(y, TRAITE1);
} /* for k ... */
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == valcomp) && (!IsSet(y, TRAITE2)))
{
LifoPush(LIFO, y);
Set(y, TRAITE2);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (MASK[x] && (!IsSet(x, TRAITE1))) */
} /* for (x = 0; x < N; x++) */
} /* if (mask->data_storage_type == VFF_TYP_1_BYTE) */
else if (mask->data_storage_type == VFF_TYP_4_BYTE)
{
for (x = 0; x < N; x++) /* recherche dans toute l'image */
{
if (!MASKLONG[x]) SOURCE[x] = NDG_MIN;
if (MASKLONG[x] && (!IsSet(x, TRAITE1))) /* on est dans une CC non traitee */
{
valcomplong = MASKLONG[x];
LifoPush(LIFO, x);
Set(x, TRAITE1);
#ifdef DEBUG
printf("Set TRAITE1 %d (%d,%d)\n",x, x%rs, x/rs);
#endif
min = SOURCE[x];
max = SOURCE[x];
sumndg = 0;
surf = 0;
sumndgb = 0;
sumndgc = 0;
surfb = 0;
while (! LifoVide(LIFO)) /* parcourt la CC */
{
w = LifoPop(LIFO);
if ((SOURCE[w] < min)) min = SOURCE[w];
if ((SOURCE[w] > max)) max = SOURCE[w];
surf += 1;
sumndg += SOURCE[w];
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == valcomplong) && (!IsSet(y, TRAITE1)))
{
LifoPush(LIFO, y);
Set(y, TRAITE1);
#ifdef DEBUG
printf("Set TRAITE1 %d (%d,%d)\n",y, y%rs, y/rs);
#endif
}
} /* for k ... */
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{
y = voisin(w, k, rs, N);
#ifdef VALEURTABOUE
if ((y != -1) && (MASKLONG[y] == 0) && (!IsSet(y, TRAITE1)) && (SOURCE[y] != VALEURTABOUE))
#else
if ((y != -1) && (MASKLONG[y] == 0) && (!IsSet(y, TRAITE1)))
#endif
{
if ((SOURCE[y] < minb)) minb = SOURCE[y];
if ((SOURCE[y] > maxb)) maxb = SOURCE[y];
surfb += 1;
sumndgb += SOURCE[y];
sumndgc += SOURCE[y] * SOURCE[y];
Set(y, TRAITE1);
#ifdef DEBUG
printf("Set TRAITE1 %d (%d,%d)\n",y, y%rs, y/rs);
#endif
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
moy = (uint8_t)(sumndg/surf);
if (surfb > 0) { moyb = (uint8_t)(sumndgb/surfb); moybd = ((double)sumndgb)/surfb; }
else { moyb = 0; moybd = 0.0; }
devb = sqrt(((double)sumndgc)/surfb - ((double)sumndgb * sumndgb)/(surfb * surfb));
#ifdef DEBUG
printf("composante %d - surf=%d ; sumndg=%d ; surfb=%d ; sumndgb=%d ; max=%d\n",
valcomplong, surf, sumndg, surfb, sumndgb, max);
#endif
LifoPush(LIFO, x);
Set(x, TRAITE2);
mintrouve = 0;
maxtrouve = 0;
moytrouve = 0;
while (! LifoVide(LIFO)) /* RE-parcourt la CC */
{
w = LifoPop(LIFO);
switch (function)
{
case MIN1:
if ((SOURCE[w] == min) && !mintrouve) { Set(w, MINIMUM); mintrouve = 1; }
break;
case MAX1:
if ((SOURCE[w] == max) && !maxtrouve) { Set(w, MAXIMUM); maxtrouve = 1; }
break;
case MOY1:
if ((SOURCE[w] == moy) && !moytrouve) { Set(w, MOYEN); moytrouve = 1; }
break;
case MIN:
SOURCE[w] = min;
break;
case MAX:
SOURCE[w] = max;
break;
case MOY:
SOURCE[w] = moy;
break;
case MINB:
SOURCE[w] = minb;
break;
case MAXB:
SOURCE[w] = maxb;
break;
case MOYB:
SOURCE[w] = moyb;
break;
case RANDB:
tmp = (int32_t)Normal(moybd, devb);
if (tmp > (int32_t)NDG_MAX) tmp = (int32_t)NDG_MAX;
if (tmp < (int32_t)NDG_MIN) tmp = (int32_t)NDG_MIN;
SOURCE[w] = (uint8_t)tmp;
break;
default:
fprintf(stderr, "%s: bad argument\n", F_NAME);
return(0);
}
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{ /* pour les demarquer (TRAITE1) */
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == 0) && (IsSet(y, TRAITE1)))
{
UnSet(y, TRAITE1);
#ifdef DEBUG
printf("UnSet TRAITE1 %d (%d,%d)\n",y, y%rs, y/rs);
#endif
}
} /* for k ... */
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == valcomplong) && (!IsSet(y, TRAITE2)))
{
LifoPush(LIFO, y);
Set(y, TRAITE2);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (MASKLONG[x] && (!IsSet(x, TRAITE1))) */
} /* for (x = 0; x < N; x++) */
} /* if (mask->data_storage_type == VFF_TYP_4_BYTE) */
else
{ fprintf(stderr, "%s: bad storage type\n", F_NAME);
return(0);
}
if (function == MIN1)
for (x = 0; x < N; x++)
if (IsSet(x, MINIMUM))
SOURCE[x] = NDG_MAX;
else
SOURCE[x] = NDG_MIN;
if (function == MAX1)
for (x = 0; x < N; x++)
if (IsSet(x, MAXIMUM))
SOURCE[x] = NDG_MAX;
else
SOURCE[x] = NDG_MIN;
if (function == MOY1)
for (x = 0; x < N; x++)
if (IsSet(x, MOYEN))
SOURCE[x] = NDG_MAX;
else
SOURCE[x] = NDG_MIN;
LifoTermine(LIFO);
IndicsTermine();
return(1);
} /* lpropgeo() */
/* ==================================== */
int32_t lpropgeolong(
struct xvimage *img1,
struct xvimage *mask,
int32_t connex,
int32_t function
)
/* ==================================== */
#undef F_NAME
#define F_NAME "lpropgeolong"
{
int32_t k;
int32_t w;
int32_t x;
int32_t y;
int32_t min;
int32_t max;
int32_t moy;
uint8_t valcomp;
int32_t valcomplong;
int32_t mintrouve;
int32_t maxtrouve;
int32_t moytrouve;
int32_t incr_vois;
int32_t incr_voisb;
int32_t sumndg; /* pour calculer la moyenne sur la composante */
int32_t surf; /* pour calculer la surface de la composante */
int32_t *SOURCE = SLONGDATA(img1);
uint8_t *MASK = UCHARDATA(mask);
int32_t *MASKLONG = SLONGDATA(mask);
int32_t rs = rowsize(img1);
int32_t cs = colsize(img1);
int32_t N = rs * cs;
Lifo * LIFO;
#ifdef PERF
chrono chrono1;
#endif
if (depth(img1) != 1)
{
fprintf(stderr, "%s: cette version ne traite pas les images volumiques\n", F_NAME);
return 0;
}
if (img1->data_storage_type != VFF_TYP_4_BYTE)
{
fprintf(stderr, "%s: datatype for arg1 must be int32_t\n", F_NAME);
return 0;
}
if ((rowsize(mask) != rs) || (colsize(mask) != cs))
{
fprintf(stderr, "%s: incompatible image sizes\n", F_NAME);
return 0;
}
switch (connex)
{
case 4: incr_vois = 2; incr_voisb = 1; break;
case 8: incr_vois = 1; incr_voisb = 2; break;
default:
fprintf(stderr, "%s: mauvaise connexite: %d\n", F_NAME, connex);
return 0;
} /* switch (connex) */
#ifdef PERF
/* pour l'analyse de performances */
start_chrono(&chrono1);
#endif
IndicsInit(N);
LIFO = CreeLifoVide(N);
if (LIFO == NULL)
{ fprintf(stderr, "%s: CreeLifoVide failed\n", F_NAME);
return(0);
}
if (mask->data_storage_type == VFF_TYP_1_BYTE)
{
for (x = 0; x < N; x++) /* recherche dans toute l'image */
{
if (!MASK[x]) SOURCE[x] = 0;
if (MASK[x] && (!IsSet(x, TRAITE1))) /* on est dans une CC non traitee */
{
valcomp = MASK[x];
LifoPush(LIFO, x);
Set(x, TRAITE1);
min = SOURCE[x];
max = SOURCE[x];
surf = 0;
while (! LifoVide(LIFO)) /* parcourt la CC */
{
w = LifoPop(LIFO);
if ((SOURCE[w] < min)) min = SOURCE[w];
if ((SOURCE[w] > max)) max = SOURCE[w];
surf += 1;
sumndg += SOURCE[w];
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == valcomp) && (!IsSet(y, TRAITE1)))
{
LifoPush(LIFO, y);
Set(y, TRAITE1);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
moy = (int32_t)(sumndg/surf);
LifoPush(LIFO, x);
Set(x, TRAITE2);
mintrouve = 0;
maxtrouve = 0;
moytrouve = 0;
while (! LifoVide(LIFO)) /* RE-parcourt la CC */
{
w = LifoPop(LIFO);
switch (function)
{
case MIN:
SOURCE[w] = min;
break;
case MAX:
SOURCE[w] = max;
break;
case MOY:
SOURCE[w] = moy;
break;
default:
fprintf(stderr, "%s: bad argument\n", F_NAME);
return(0);
}
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{ /* pour les demarquer (TRAITE1) */
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == 0) && (IsSet(y, TRAITE1)))
UnSet(y, TRAITE1);
} /* for k ... */
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASK[y] == valcomp) && (!IsSet(y, TRAITE2)))
{
LifoPush(LIFO, y);
Set(y, TRAITE2);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (MASK[x] && (!IsSet(x, TRAITE1))) */
} /* for (x = 0; x < N; x++) */
} /* if (mask->data_storage_type == VFF_TYP_1_BYTE) */
else if (mask->data_storage_type == VFF_TYP_4_BYTE)
{
for (x = 0; x < N; x++) /* recherche dans toute l'image */
{
if (!MASKLONG[x]) SOURCE[x] = NDG_MIN;
if (MASKLONG[x] && (!IsSet(x, TRAITE1))) /* on est dans une CC non traitee */
{
valcomplong = MASKLONG[x];
LifoPush(LIFO, x);
Set(x, TRAITE1);
#ifdef DEBUG
printf("Set TRAITE1 %d (%d,%d)\n",x, x%rs, x/rs);
#endif
min = SOURCE[x];
max = SOURCE[x];
sumndg = 0;
surf = 0;
while (! LifoVide(LIFO)) /* parcourt la CC */
{
w = LifoPop(LIFO);
if ((SOURCE[w] < min)) min = SOURCE[w];
if ((SOURCE[w] > max)) max = SOURCE[w];
surf += 1;
sumndg += SOURCE[w];
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == valcomplong) && (!IsSet(y, TRAITE1)))
{
LifoPush(LIFO, y);
Set(y, TRAITE1);
#ifdef DEBUG
printf("Set TRAITE1 %d (%d,%d)\n",y, y%rs, y/rs);
#endif
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
moy = (int32_t)(sumndg/surf);
LifoPush(LIFO, x);
Set(x, TRAITE2);
mintrouve = 0;
maxtrouve = 0;
moytrouve = 0;
while (! LifoVide(LIFO)) /* RE-parcourt la CC */
{
w = LifoPop(LIFO);
switch (function)
{
case MIN:
SOURCE[w] = min;
break;
case MAX:
SOURCE[w] = max;
break;
case MOY:
SOURCE[w] = moy;
break;
default:
fprintf(stderr, "%s: bad argument\n", F_NAME);
return(0);
}
for (k = 0; k < 8; k += incr_voisb) /* parcourt les voisins dans le complementaire */
{ /* pour les demarquer (TRAITE1) */
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == 0) && (IsSet(y, TRAITE1)))
{
UnSet(y, TRAITE1);
#ifdef DEBUG
printf("UnSet TRAITE1 %d (%d,%d)\n",y, y%rs, y/rs);
#endif
}
} /* for k ... */
for (k = 0; k < 8; k += incr_vois) /* parcourt les voisins */
{
y = voisin(w, k, rs, N);
if ((y != -1) && (MASKLONG[y] == valcomplong) && (!IsSet(y, TRAITE2)))
{
LifoPush(LIFO, y);
Set(y, TRAITE2);
}
} /* for k ... */
} /* while (! LifoVide(LIFO)) */
} /* if (MASKLONG[x] && (!IsSet(x, TRAITE1))) */
} /* for (x = 0; x < N; x++) */
} /* if (mask->data_storage_type == VFF_TYP_4_BYTE) */
else
{ fprintf(stderr, "%s: bad storage type\n", F_NAME);
return(0);
}
LifoTermine(LIFO);
IndicsTermine();
return(1);
} /* lpropgeolong() */
/* mBorderWshed2d was previously called flowLPE2d*/
struct xvimage *mBorderWshed2drapide(struct xvimage *ga)
#undef F_NAME
#define F_NAME "mBorderWshed2drapide"
{
int32_t i,j,k,x,y,z,w,u, nlabels, label;
struct xvimage *res;
// uint32_t *Eminima;
int32_t *Vminima;
int32_t rs = rowsize(ga); /* taille ligne */
int32_t cs = colsize(ga); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *F = UCHARDATA(ga); /* l'image de depart */
uint8_t *VF; /* fonction indicatrice sur les
sommets */
Lifo *L;
/******************INITIALISATION*********************/
/* if(!jclabelextrema(ga, &Eminima, 1, &nlabels)) {
fprintf(stderr,"%s erreur de label extrema \n",F_NAME);
exit(1);
}*/
if( (res = allocimage(NULL, rs, cs, 1, VFF_TYP_4_BYTE)) == NULL) {
fprintf(stderr,"%s erreur de allocimage \n", F_NAME);
exit(1);
}
Vminima = SLONGDATA(res);
if( (VF = malloc(sizeof(uint8_t) * N)) == NULL) {
fprintf(stderr,"%s ne peut allouer VF \n", F_NAME);
exit(1);
}
/* Valuation des sommets */
for(i = 0; i < N; i++) {
VF[i] = 255;
Vminima[i] = -1;
for(k = 0; k < 4; k++)
if( (u = incidente(i, k, rs, N)) != -1)
if(F[u] < VF[i]) VF[i] = F[u];
}
/* Initialisation de la FIFO */
L = CreeLifoVide(2*N); /* nbre maximum d'arete ds un ga 4 connexe
sans regarder les bords */
/* Calcul des sommets qui sont dans des minima de F */
nlabels = 0;
for(x = 0; x < N; x++){
if(Vminima[x] == -1){ /* On trouve un sommet non encore etiquete */
nlabels ++;
Vminima[x] = nlabels;
LifoPush(L,x);
while(!LifoVide(L)) {
w = LifoPop(L);
label = Vminima[w];
for(k = 0; k < 4; k++)
if( (u = incidente(w, k, rs, N)) != -1){
if(F[u] == VF[w]){
switch(k){
case 0: y = w+1; break; /* EST */
case 1: y = w-rs; break; /* NORD */
case 2: y = w-1; break; /* OUEST */
case 3: y = w+rs; break; /* SUD */
}
if( (label > 0) && (VF[y] < VF[w]) ){
label = 0;
nlabels --;
Vminima[w] = label;
LifoPush(L,w);
}
else if(VF[y] == VF[w]){
if( ( (label > 0) && (Vminima[y] == -1) ) ||
( (label == 0) && (Vminima[y] != 0)) ){
Vminima[y] = label;
LifoPush(L,y);
}
}
}
}
}
}
}
// printf("nlabels %d \n",nlabels);
/* Les aretes adjacentes a un minimum sont inserees dans L */
/* on explore d'abord les aretes horizontales */
for(j = 0; j < cs; j++)
for(i = 0; i < rs -1; i++){
u = j * rs + i; x = Sommetx(u,N,rs); y = Sommety(u,N,rs);
if( (mcmin(Vminima[x], Vminima[y]) == 0) && /* un des deux sommets non ds un minima */
(mcmax(Vminima[x], Vminima[y]) > 0) ) /* et l'autre dans un minima */
LifoPush(L,u);
}
/* puis les aretes verticales */
for(j = 0; j < cs -1; j++)
for(i = 0; i < rs; i++)
{
u = N + j * rs + i; x = Sommetx(u,N,rs); y = Sommety(u,N,rs);
if( (mcmin(Vminima[x], Vminima[y]) == 0) && /* un des deux sommets non ds un minima */
(mcmax(Vminima[x], Vminima[y]) > 0) ) /* et l'autre dans un minima */
LifoPush(L,u);
}
/*************BOUCLE PRINCIPALE*****************/
while(!LifoVide(L)) {
u = LifoPop(L);
x = Sommetx(u, N, rs);
y = Sommety(u, N, rs);
if (VF[x] > VF[y]) {z = y; y = x; x = z;}
if((VF[x] < F[u]) && (VF[y] == F[u])){ /* u est une arete de bord */
F[u] = VF[x];
VF[y] = F[u];
// Eminima[u] = Vminima[x];
Vminima[y] = Vminima[x];
for(k = 0; k < 8; k +=2){
if( (z = voisin(y, k, rs, N)) != -1)
if( (Vminima[z] == 0))
LifoPush(L, Arete(y,z,rs,N));
} /* for(k = 0 .. */
} /* if( (VF[x] < ... */
}/* while(!LifoVide... */
// free(Eminima);
free(VF);
return res;
}// mBorderWshed2drapide(...)
/* mBorderWshed2d was previously called flowLPE2d*/
struct xvimage *mBorderWshed2d(struct xvimage *ga)
#undef F_NAME
#define F_NAME "mBorderWshed2d"
{
int32_t i,j,k,x,y,z,u, nlabels;
struct xvimage *res;
uint32_t *Eminima;
uint32_t *Vminima;
int32_t rs = rowsize(ga); /* taille ligne */
int32_t cs = colsize(ga); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *F = UCHARDATA(ga); /* l'image de depart */
uint8_t *VF; /* fonction indicatrice sur les
sommets */
Lifo *L;
/******************INITIALISATION*********************/
if(!jclabelextrema(ga, &Eminima, 1, &nlabels)) {
fprintf(stderr,"%s erreur de label extrema \n",F_NAME);
exit(1);
}
//printf("nlabels %d \n", nlabels);
if( (res = allocimage(NULL, rs, cs, 1, VFF_TYP_4_BYTE)) == NULL) {
fprintf(stderr,"%s erreur de allocimage \n", F_NAME);
exit(1);
}
Vminima = SLONGDATA(res);
if( (VF = malloc(sizeof(uint8_t) * N)) == NULL) {
fprintf(stderr,"%s ne peut allouer VF \n", F_NAME);
exit(1);
}
/* Valuation des sommets et calcul de V_M a partir de E_M */
for(i = 0; i < N; i++) {
VF[i] = 255;
Vminima[i] = 0;
for(k = 0; k < 4; k++)
if( (u = incidente(i, k, rs, N)) != -1) {
if(F[u] < VF[i]) VF[i] = F[u];
if(Eminima[u] > 0) Vminima[i] = Eminima[u];
}
}
/* Initialisation de la FIFO */
L = CreeLifoVide(2*N); /* nbre maximum d'arete ds un ga 4 connexe
sans regarder les bords */
/* Les aretes adjacentes a un minimum sont inserees dans L */
/* on explore d'abord les aretes horizontales */
for(j = 0; j < cs; j++)
for(i = 0; i < rs -1; i++){
u = j * rs + i; x = Sommetx(u,N,rs); y = Sommety(u,N,rs);
if( (mcmin(Vminima[x], Vminima[y]) == 0) && /* un des deux sommets non ds un minima */
(mcmax(Vminima[x], Vminima[y]) > 0) ) /* et l'autre dans un minima */
LifoPush(L,u);
}
/* puis les aretes verticales */
for(j = 0; j < cs -1; j++)
for(i = 0; i < rs; i++)
{
u = N + j * rs + i; x = Sommetx(u,N,rs); y = Sommety(u,N,rs);
if( (mcmin(Vminima[x], Vminima[y]) == 0) && /* un des deux sommets non ds un minima */
(mcmax(Vminima[x], Vminima[y]) > 0) ) /* et l'autre dans un minima */
LifoPush(L,u);
}
/*************BOUCLE PRINCIPALE*****************/
while(!LifoVide(L)) {
u = LifoPop(L);
x = Sommetx(u, N, rs);
y = Sommety(u, N, rs);
if (VF[x] > VF[y]) {z = y; y = x; x = z;}
if((VF[x] < F[u]) && (VF[y] == F[u])){ /* u est une arete de bord */
F[u] = VF[x];
VF[y] = F[u];
Eminima[u] = Vminima[x];
Vminima[y] = Vminima[x];
for(k = 0; k < 8; k +=2){
if( (z = voisin(y, k, rs, N)) != -1)
if( (Vminima[z] == 0))
LifoPush(L, Arete(y,z,rs,N));
} /* for(k = 0 .. */
} /* if( (VF[x] < ... */
}/* while(!LifoVide... */
free(Eminima); free(VF);
return res;
}
/* ==================================== */
void saturation(int32_t rs, int32_t cs, int32_t N, uint8_t *F, Fahp * FAHP)
/* ==================================== */
{
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t k; /* index muet */
int32_t t4mm, t4m, t8p, t8pp;
int32_t level;
#ifdef DEBUG
uint8_t oldFx;
#endif
while (!FahpVide(FAHP))
{
level = FahpNiveau(FAHP);
x = FahpPop(FAHP);
UnSet(x, EN_FAHP);
UnSet(x, EN_FAHP2);
if ((F[x] > 0) && (level <= NDG_MAX))
{
nbtopoh(F, x, 1, rs, N, &t4mm, &t4m, &t8p, &t8pp);
if (t4mm == 1)
{
if (pdestr4(F, x, rs, N))
{
#ifdef DEBUG
oldFx = F[x];
#endif
if (!ridge(F, x, rs, N)) F[x] = 0; else F[x] = alpha8m(F, x, rs, N);
#ifdef DEBUG
printf("point %d (%d %d), val = %d --> %d\n", x, x%rs, x/rs, oldFx, F[x]);
#endif
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (F[y] > 0) && (! IsSet(y, EN_FAHP)))
{
FahpPush(FAHP, y, F[y]);
Set(y, EN_FAHP);
} /* if y */
} /* for k */
} /* if (pdestr4(F, x, rs, N)) */
} /* if (t4mm == 1) */
else /* t4mm != 1 */
{
if (pdestr4(F, x, rs, N)) /* point divergent */
{
F[x] = alpha8m(F, x, rs, N);
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (F[y] > 0) && (! IsSet(y, EN_FAHP)))
{
FahpPush(FAHP, y, F[y]);
Set(y, EN_FAHP);
} /* if y */
} /* for k */
} /* if (pdestr4(F, x, rs, N)) */
} /* else if (t4mm == 1) */
} /* ((F[x] > 0) && (F[x] <= NDG_MAX)) */
} /* while (! (FifoVide(FAHP) ...)) */
} /* saturation() */
/* ==================================== */
static void Watershed(struct xvimage *image, int32_t connex,
Fahs * FAHS, int32_t *CM, ctree * CT)
/* ==================================== */
//
// inondation a partir des voisins des maxima, suivant les ndg decroissants
// nouvelle (08/03) caracterisation des points destructibles
// nouvelle (09/03) construction de l'arbre des composantes
// Nouvelle (05/05) lca en temps constant + qq optimisation de l'article JMIV (najmanl)
#undef F_NAME
#define F_NAME "Watershed"
{
uint8_t *F = UCHARDATA(image);
int32_t rs = rowsize(image);
int32_t ps = rs * colsize(image);
int32_t N = ps * depth(image);
int32_t i, k, x, y;
int32_t c; /* une composante */
int32_t tabcomp[26]; /* liste de composantes */
int32_t nbelev; /* nombre d'elevations effectuees */
int32_t lcalevel; /* niveau du lca */
int32_t incr_vois;
#ifndef LCASLOW
int32_t logn, nbRepresent;
int32_t *Euler, *Depth, *Represent, *Number, **Minim;
#endif
// INITIALISATIONS
FahsFlush(FAHS); // Re-initialise la FAHS
#ifndef LCASLOW
Euler = (int32_t *)calloc(2*CT->nbnodes-1, sizeof(int32_t));
Represent = (int32_t *)calloc(CT->nbnodes, sizeof(int32_t));
Depth = (int32_t *)calloc(CT->nbnodes, sizeof(int32_t));
Number = (int32_t *)calloc(CT->nbnodes, sizeof(int32_t));
if ((Euler == NULL) || (Represent == NULL)
|| (Depth == NULL) || (Number == NULL)) {
fprintf(stderr, "%s : malloc failed\n", F_NAME);
return;
}
Minim = LCApreprocess(CT, Euler, Depth, Represent, Number, &nbRepresent, &logn);
#ifdef _DEBUG_
printf("Comparison Slow/Fast lca\n");
{
int32_t i,j, anc;
int32_t nbErrors = 0;
for (i=0; i<CT->nbnodes; i++)
for (j=0; j<CT->nbnodes; j++) {
if ((CT->tabnodes[i].nbsons > -1) && (CT->tabnodes[j].nbsons > -1)) {
anc = Represent[LowComAncFast(i,j,Euler,Number,Depth,Minim)];
if (anc != LowComAncSlow(CT,i,j)) {
nbErrors++;
printf("Error node lca(%d, %d) = %d ou %d ?\n", i, j, anc, LowComAncSlow(CT,i,j));
} else {
printf("Ok node lca(%d, %d) = %d\n", i, j, anc);
}
}
}
printf("Nb errors = %d\n",nbErrors);
}
fflush(stdout);
#endif // _DEBUG_
#endif //ifndef LCASLOW
switch (connex)
{
case 4: incr_vois = 2; break;
case 8: incr_vois = 1; break;
} /* switch (connex) */
// etiquetage des c-maxima (doit pouvoir se faire au vol lors de la construction de l'arbre)
for (i = 0; i < N; i++)
{
c = CM[i];
if (CT->tabnodes[c].nbsons == 0) {
Set(i,MASSIF);
}
} // for (i = 0; i < N; i++)
// empile les points
for (i = 0; i < N; i++)
{
#ifdef OLDVERSION
// empile tous les points
Set(i,EN_FAHS);
FahsPush(FAHS, i, NDG_MAX - F[i]);
#else
// empile les points voisins d'un minima
char flag=0;
switch (connex)
{
case 4:
case 8:
for (k = 0; (k < 8) && (flag == 0); k += incr_vois)
{ y = voisin(i, k, rs, N);
if ((y != -1) && (IsSet(y,MASSIF)))
{ flag = 1; }
} break;
case 6:
for (k = 0; k <= 10; k += 2)
{ y = voisin6(i, k, rs, ps, N);
if ((y != -1) && (IsSet(y,MASSIF)))
{ flag = 1; }
} break;
case 18:
for (k = 0; k < 18; k += 1)
{ y = voisin18(i, k, rs, ps, N);
if ((y != -1) && (IsSet(y,MASSIF)))
{ flag = 1; }
} break;
case 26:
for (k = 0; k < 26; k += 1)
{ y = voisin26(i, k, rs, ps, N);
if ((y != -1) && (IsSet(y,MASSIF)))
{ flag = 1; }
} break;
} /* switch (connex) */
if (flag) {
Set(i,EN_FAHS); FahsPush(FAHS, i, NDG_MAX - F[i]);
}
#endif
} // for (i = 0; i < N; i++)
// BOUCLE PRINCIPALE
nbelev = 0;
while (!FahsVide(FAHS))
{
x = FahsPop(FAHS);
UnSet(x,EN_FAHS);
W_Constructible(x, F, rs, ps, N, connex, CT, CM, tabcomp, &c, &lcalevel
#ifndef LCASLOW
, Euler, Represent, Depth, Number, Minim
#endif
);
if (c != -1)
{
nbelev++;
F[x] = lcalevel; // eleve le niveau du point x
CM[x] = c; // maj pointeur image -> composantes
Set(x,MODIFIE);
if (CT->tabnodes[c].nbsons == 0) // feuille
{
Set(x,MASSIF);
} // if feuille
else
if (CT->tabnodes[c].nbsons > 1) // noeud
{
}
#ifdef PARANO
else
printf("%s : ERREUR COMPOSANTE BRANCHE!!!\n", F_NAME);
#endif
// empile les c-voisins de x non marques MASSIF ni EN_FAHS
switch (connex)
{
case 4:
case 8:
for (k = 0; k < 8; k += incr_vois)
{ y = voisin(x, k, rs, N);
if ((y != -1) && (!IsSet(y,MASSIF)) && (!IsSet(y,EN_FAHS)))
{ Set(y,EN_FAHS); FahsPush(FAHS, y, NDG_MAX - F[y]); }
} break;
case 6:
for (k = 0; k <= 10; k += 2)
{ y = voisin6(x, k, rs, ps, N);
if ((y != -1) && (!IsSet(y,MASSIF)) && (!IsSet(y,EN_FAHS)))
{ Set(y,EN_FAHS); FahsPush(FAHS, y, NDG_MAX - F[y]); }
} break;
case 18:
for (k = 0; k < 18; k += 1)
{ y = voisin18(x, k, rs, ps, N);
if ((y != -1) && (!IsSet(y,MASSIF)) && (!IsSet(y,EN_FAHS)))
{ Set(y,EN_FAHS); FahsPush(FAHS, y, NDG_MAX - F[y]); }
} break;
case 26:
for (k = 0; k < 26; k += 1)
{ y = voisin26(x, k, rs, ps, N);
if ((y != -1) && (!IsSet(y,MASSIF)) && (!IsSet(y,EN_FAHS)))
{ Set(y,EN_FAHS); FahsPush(FAHS, y, NDG_MAX - F[y]); }
} break;
} /* switch (connex) */
} // if (c != -1)}
} // while (!FahsVide(FAHS))
#ifdef VERBOSE
printf("Nombre d'elevations %d\n", nbelev);
#endif
#ifndef LCASLOW
free(Euler);
free(Represent);
free(Depth);
free(Number);
free(Minim[0]);
free(Minim);
#endif //LCASLOW
} // Watershed()
/* ==================================== */
int32_t lremspnoise(
struct xvimage *image,
int32_t g,
int32_t k)
/* g : nombre de niveaux d'ecart */
/* k : nombre de voisins consideres */
/* ==================================== */
{
int32_t i, v, n, j, m, nv;
uint8_t *pt;
int32_t rs = image->row_size;
int32_t cs = image->col_size;
int32_t N = rs * cs;
uint8_t *imagetmp;
if (depth(image) != 1)
{
fprintf(stderr, "lhtkern: cette version ne traite pas les images volumiques\n");
exit(0);
}
pt = UCHARDATA(image);
imagetmp = (uint8_t *)calloc(1,N*sizeof(char));
if (imagetmp == NULL)
{ printf("lremspnoise() : malloc failed\n");
return(0);
}
/* ---------------------------------------------------------- */
/* calcul du resultat */
/* ---------------------------------------------------------- */
for (i = 0; i < N; i++)
{
/* detection du bruit : compte le nombre de voisins qui
different de plus de g niveaux
*/
n = 0;
nv = 0;
m = 0;
for (v = 0; v < 8; v++) /* 8-voisins */
if ((j = voisin(i, v, rs, N)) != -1)
{
if (mcabs(((int32_t)pt[i] - (int32_t)pt[j]) >= g)) n++;
nv++; /* compte les voisins */
m += pt[j]; /* pour le calcul de la moyenne */
}
if (n >= k)
{
/* moyennage : remplace la valeur du point par la moyenne de ses
8 voisins
*/
imagetmp[i] = (uint8_t)(m / nv);
}
else
imagetmp[i] = pt[i];
}
for (i = 0; i < N; i++)
pt[i] = imagetmp[i];
free(imagetmp);
return 1;
}
/* waterfall vu comme une succession de LPE sur les aretes*/
int32_t main_cascade(struct xvimage *image, struct xvimage *ga, int32_t param)
/* 4 connexite uniquement Construit le graphe d'arete de saillance pour les cascades*/
/* ==================================== */
#undef F_NAME
#define F_NAME "main_cascade"
{
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *F = UCHARDATA(image); /* l'image de depart */
uint8_t *G = UCHARDATA(ga); /* le GA de sortie */
int32_t *Label1, *Label2;
struct GrapheValue *g1, *g2;
int32_t i,k,y;
int32_t nbregions;
if ( (Label1 = malloc(sizeof(int32_t) * N)) == NULL){
fprintf(stderr, "%s: Erreur de malloc\n", F_NAME);
exit(0);
}
if ( (Label2 = malloc(sizeof(int32_t) * N)) == NULL){
fprintf(stderr, "%s: Erreur de malloc\n", F_NAME);
exit(0);
}
for(i = 0; i < 2*N; i++)
G[i] = 0;
//printf("Initialisation du Ga out done \n");
g1 = initGrapheValue(N, 4*N - 2*rs - 2*cs); /* nbre d'arete du graphe 4-connexe symetrique correspondant */
//printf("Initialisation du graphe utile \n");
for(i = 0; i < N; i++){
Label1[i] = i;
for (k = 0; k < 4; k += 2){
if((y = voisin(i, k, rs, N)) != -1)
switch(param){
case 0: updateArcValue(g1,i, y, (uint8_t)mcmax(F[i],F[y])); break;
case 1: updateArcValue(g1,i, y, (uint8_t)mcabs((int32_t)F[i] - (int32_t)F[y])); break;
default: fprintf(stderr,"%s: Mauvais parametre \n", F_NAME); exit(0);
}
}
}
//printf("Graphe utile calcule \n");
nbregions = (int32_t)lpeGrapheAreteValuee(g1, Label2);
//printf("LPE du graphe utile done et nb regions %d\n",nbregions);
fflush(stdout);
while(nbregions > 1){
//printf("Un etage de la hierarchie \n");
g2 = initGrapheValue((int32_t)nbregions, (int32_t)mcmin(nbregions*(nbregions-1), (int32_t)(4*N - 2*rs - 2*cs)) );
//printf("2eme graphe initialise \n");
for(i = 0; i < N; i++){
for(k=0; k < 2; k++)
if((y = voisin(i, 2*k, rs, N)) != -1){
if(Label2[Label1[i]] != Label2[Label1[y]]){
// Mise a jour de la carte de saillance du waterfall
G[incidente(i,k,rs,N)] ++;
switch(param){
case 0: updateArcValue(g2,Label2[Label1[i]], Label2[Label1[y]], mcmax(F[i],F[y])); break;
case 1: updateArcValue(g2,Label2[Label1[i]], Label2[Label1[y]],
(uint8_t)mcabs((int32_t)F[i] - (int32_t)F[y])); break;
default: fprintf(stderr,"%s: Mauvais parametre \n", F_NAME); exit(0);
}
}
}
}
for(i = 0; i < N; i++){
Label1[i] = Label2[Label1[i]];
}
termineGrapheValue(g1);
g1 = g2;
nbregions = (int32_t)lpeGrapheAreteValuee(g1, Label2);
}
termineGrapheValue(g1);
free(Label1);
free(Label2);
return 1;
}
/* ==================================== */
int32_t lsquelsmoothval(struct xvimage *image, // entree/sortie: image originale / squelette
struct xvimage *dx, // entree/sortie: distance / distance topologique
struct xvimage *ni, // entree/sortie: niveaux - image 1D
struct xvimage *gr, // entree: gradient
int32_t connex,
int32_t val_inhibit,
int32_t rayon)
/* ==================================== */
#undef F_NAME
#define F_NAME "lsquelsmoothval"
{
int32_t k;
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t N = rs * cs; /* taille image */
struct xvimage *dt; /* pour le calcul de la "distance topologique" */
uint32_t *DT; /* fonction "distance topologique" */
uint8_t *IM = UCHARDATA(image); /* l'image de depart */
uint32_t *DX = ULONGDATA(dx); /* fonction distance au complementaire de IM */
uint8_t *NI = UCHARDATA(ni); /* fonction niveau (1D) - taille N * 1 */
uint8_t *GR = UCHARDATA(gr); /* fonction gradient */
uint32_t d;
Rbt * RBT;
int32_t taillemaxrbt;
Liste * cx; // pour le cercle de centre x
Liste * cy; // pour le cercle de centre y
uint32_t dmax;
IndicsInit(N);
if ((rowsize(dx) != rs) || (colsize(dx) != cs) || (depth(dx) != 1))
{
fprintf(stderr, "%s() : bad size for dx\n", F_NAME);
return(0);
}
if (datatype(dx) != VFF_TYP_4_BYTE)
{
fprintf(stderr, "%s() : datatype(dx) must be uint32_t\n", F_NAME);
return(0);
}
if ((rowsize(ni) != N) || (colsize(ni) != 1) || (depth(ni) != 1))
{
fprintf(stderr, "%s() : bad size for ni\n", F_NAME);
return(0);
}
dt = copyimage(dx);
DT = ULONGDATA(dt);
taillemaxrbt = 2 * rs + 2 * cs ;
/* cette taille est indicative, le RBT est realloue en cas de depassement */
RBT = mcrbt_CreeRbtVide(taillemaxrbt);
if (RBT == NULL)
{
fprintf(stderr, "%s() : mcrbt_CreeRbtVide failed\n", F_NAME);
return(0);
}
for (dmax = 0, x = 0; x < N; x++) if (DX[x] > dmax) dmax = DX[x];
// INITIALISATION DT
for (x = 0; x < N; x++) if (IM[x]) DT[x] = INFINI; else DT[x] = 0;
// INITIALISATION DU RBT
for (x = 0; x < N; x++)
if (IM[x] && (DX[x] != val_inhibit) && bordext8(IM, x, rs, N))
{
mcrbt_RbtInsert(&RBT, DX[x], x);
Set(x, EN_RBT);
} // if, for
cx = CreeListeVide(2*rs + 2*cs);
cy = CreeListeVide(2*rs + 2*cs);
d = 1;
if (connex == 4)
{
while (!mcrbt_RbtVide(RBT))
{
x = RbtPopMin(RBT);
UnSet(x, EN_RBT);
#ifdef DEBUG
printf("pop x = %d,%d, im = %d, dx = %ld\n", x%rs, x/rs, IM[x], DX[x]);
#endif
if (simple4(IM, x, rs, N))
{
if (smooth(image, x, rayon, cx, cy))
{
NI[d] = GR[x];
DT[x] = d;
IM[x] = 0;
d++;
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (IM[y]) && (DX[y] != val_inhibit) && (! IsSet(y, EN_RBT)))
{
mcrbt_RbtInsert(&RBT, DX[y], y);
Set(y, EN_RBT);
} /* if y */
} /* for k */
}
else
{
DX[x] += INCR_PRIO;
if (DX[x] > dmax) break;
mcrbt_RbtInsert(&RBT, DX[x], x);
Set(x, EN_RBT);
}
} // if (simple4(IM, x, rs, N))
} /* while (!mcrbt_RbtVide(RBT)) */
} /* if (connex == 4) */
else
if (connex == 8)
{
printf("connex 8 NYI\n");
} /* if (connex == 8) */
// RECUPERATION DU RESULTAT
d = 0; // valeur pour l'infini: plus grande valeur finie + 1
for (x = 0; x < N; x++) if ((DT[x] > d) && (DT[x] < INFINI)) d = DT[x];
d += 1;
for (x = 0; x < N; x++) if (DT[x] == INFINI) DX[x] = d; else DX[x] = DT[x];
/* ================================================ */
/* UN PEU DE MENAGE */
/* ================================================ */
IndicsTermine();
mcrbt_RbtTermine(RBT);
freeimage(dt);
ListeTermine(cx);
ListeTermine(cy);
return(1);
} /* lsquelsmoothval() */
/* ==================================== */
int32_t lgeodilat(
struct xvimage *g,
struct xvimage *f,
int32_t connex,
int32_t niter)
/* dilatation geodesique de g sous f */
/* g : image marqueur */
/* f : image masque */
/* connex : 4 ou 8 */
/* niter : nombre d'iterations (ou -1 pour saturation) */
/* resultat dans g */
/* ==================================== */
#undef F_NAME
#define F_NAME "lgeodilat"
{
int32_t nbchang, iter;
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t k; /* index muet */
int32_t rs = rowsize(g); /* taille ligne */
int32_t cs = colsize(g); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *G = UCHARDATA(g); /* l'image marqueur */
uint8_t *F = UCHARDATA(f); /* l'image masque */
uint8_t *H; /* image de travail */
uint8_t *temp;
uint8_t sup;
Fifo * FIFO[2];
int32_t incr_vois;
switch (connex)
{
case 4: incr_vois = 2; break;
case 8: incr_vois = 1; break;
} /* switch (connex) */
if ((rowsize(f) != rs) || (colsize(f) != cs))
{
fprintf(stderr, "%s: incompatible sizes\n", F_NAME);
return 0;
}
if (depth(f) != 1)
{
fprintf(stderr, "%s: only works for 2d images\n", F_NAME);
return 0;
}
FIFO[0] = CreeFifoVide(N);
FIFO[1] = CreeFifoVide(N);
if ((FIFO[0] == NULL) || (FIFO[1] == NULL))
{ fprintf(stderr,"%s : CreeFifoVide failed\n", F_NAME);
return(0);
}
IndicsInit(N);
for (x = 0; x < N; x++) /* mise en fifo initiale de tous les points */
{
FifoPush(FIFO[1], x);
Set(x, 1);
}
H = (uint8_t *)calloc(1,N*sizeof(char));
if (H == NULL)
{ fprintf(stderr,"%s : malloc failed for H\n", F_NAME);
return(0);
}
for (x = 0; x < N; x++) /* force G à être <= F */
if (G[x] > F[x]) G[x] = F[x];
iter = 0;
do
{
iter += 1;
nbchang = 0;
while (! FifoVide(FIFO[iter % 2]))
{
x = FifoPop(FIFO[iter % 2]);
UnSet(x, iter % 2);
sup = G[x];
for (k = 0; k < 8; k += incr_vois)
{
y = voisin(x, k, rs, N);
if ((y != -1) && (G[y] > sup)) sup = G[y];
} /* for k */
sup = mcmin(sup, F[x]);
if (G[x] != sup) /* changement: on enregistre x ainsi que ses voisins */
{
nbchang += 1;
if (! IsSet(x, (iter + 1) % 2))
{
FifoPush(FIFO[(iter + 1) % 2], x);
Set(x, (iter + 1) % 2);
}
for (k = 0; k < 8; k += 1)
{
y = voisin(x, k, rs, N);
if ((y != -1) && (! IsSet(y, (iter + 1) % 2)))
{
FifoPush(FIFO[(iter + 1) % 2], y);
Set(y, (iter + 1) % 2);
}
} /* for k */
}
H[x] = sup;
} /* while ! FifoVide */
/* echange les roles de G et H */
temp = G;
G = H;
H = temp;
#ifdef VERBOSE
printf("iteration %d, nbchang %d\n", iter, nbchang);
#endif
} while (((niter == -1) || (iter < niter)) && (nbchang != 0));
/* remet le resultat dans g si necessaire */
if (G != UCHARDATA(g))
{
for (x = 0; x < N; x++)
(UCHARDATA(g))[x] = G[x];
free(G);
}
else
free(H);
FifoTermine(FIFO[0]);
FifoTermine(FIFO[1]);
IndicsTermine();
return 1;
} /* lgeodilat() */
/* ==================================== */
static int32_t TrouveComposantes(int32_t x, uint8_t *F, int32_t rs, int32_t ps, int32_t N, int32_t connex,
int32_t *CM, int32_t *tabcomp)
/* ==================================== */
// variante sans simplification
// place la plus haute composante (ou l'une des plus hautes) en premier
{
int32_t k, y, n = 1, maxval = F[x], first = 1;
switch (connex)
{
case 4:
for (k = 0; k < 8; k += 2) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin(x, k, rs, N);
if ((y != -1) && (F[y] > maxval)) maxval = F[y];
} /* for (k = 0; k < 8; k += 2) */
if (maxval == F[x]) return 0;
for (k = 0; k < 8; k += 2) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin(x, k, rs, N);
if ((y != -1) && (F[y] > F[x]))
{ if (first && (F[y] == maxval)) { tabcomp[0] = CM[y]; first = 0; }
else { tabcomp[n] = CM[y]; n++; }
}
} break;
case 8:
for (k = 0; k < 8; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin(x, k, rs, N);
if ((y != -1) && (F[y] > maxval)) maxval = F[y];
} /* for (k = 0; k < 8; k += 1) */
if (maxval == F[x]) return 0;
for (k = 0; k < 8; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin(x, k, rs, N);
if ((y != -1) && (F[y] > F[x]))
{ if (first && (F[y] == maxval)) { tabcomp[0] = CM[y]; first = 0; }
else { tabcomp[n] = CM[y]; n++; }
}
} break;
case 6:
for (k = 0; k <= 10; k += 2) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin6(x, k, rs, ps, N);
if ((y != -1) && (F[y] > maxval)) maxval = F[y];
}
if (maxval == F[x]) return 0;
for (k = 0; k <= 10; k += 2) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin6(x, k, rs, ps, N);
if ((y != -1) && (F[y] > F[x]))
{ if (first && (F[y] == maxval)) { tabcomp[0] = CM[y]; first = 0; }
else { tabcomp[n] = CM[y]; n++; }
}
} break;
case 18:
for (k = 0; k < 18; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin18(x, k, rs, ps, N);
if ((y != -1) && (F[y] > maxval)) maxval = F[y];
}
if (maxval == F[x]) return 0;
for (k = 0; k < 18; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin18(x, k, rs, ps, N);
if ((y != -1) && (F[y] > F[x]))
{ if (first && (F[y] == maxval)) { tabcomp[0] = CM[y]; first = 0; }
else { tabcomp[n] = CM[y]; n++; }
}
} break;
case 26:
for (k = 0; k < 26; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin26(x, k, rs, ps, N);
if ((y != -1) && (F[y] > maxval)) maxval = F[y];
}
if (maxval == F[x]) return 0;
for (k = 0; k < 26; k += 1) // parcourt les c-voisins y de x d'un niveau > F[x]
{ y = voisin26(x, k, rs, ps, N);
if ((y != -1) && (F[y] > F[x]))
{ if (first && (F[y] == maxval)) { tabcomp[0] = CM[y]; first = 0; }
else { tabcomp[n] = CM[y]; n++; }
}
} break;
} // switch (connex)
return n;
} // TrouveComposantes()
/* ==================================== */
int32_t lsquel(struct xvimage *image, int32_t seuil, int32_t niseuil)
/* ==================================== */
{
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *SOURCE = UCHARDATA(image); /* l'image de depart */
struct xvimage *lab;
int32_t *M; /* l'image d'etiquettes de composantes connexes */
int32_t nminima; /* nombre de minima differents */
Fifo * FIFOn;
Fifo * FIFOs;
Fifo * FIFOe;
Fifo * FIFOo;
Fifo * FIFOna;
Fifo * FIFOsa;
Fifo * FIFOea;
Fifo * FIFOoa;
Fifo * FIFOtmp;
Fifo * FIFO;
int32_t niter;
#ifdef PERF
chrono chrono1;
#endif
if (depth(image) != 1)
{
fprintf(stderr, "lsquel: cette version ne traite pas les images volumiques\n");
exit(0);
}
#ifdef PERF
start_chrono(&chrono1); /* pour l'analyse de performances */
#endif
lab = allocimage(NULL, rs, cs, 1, VFF_TYP_4_BYTE);
if (lab == NULL)
{
fprintf(stderr, "lhtkern: allocimage failed\n");
return 0;
}
M = SLONGDATA(lab);
if (!llabelextrema(image, 4, LABMIN, lab, &nminima))
{
fprintf(stderr, "lhtkern: llabelextrema failed\n");
return 0;
}
IndicsInit(N);
FIFO = CreeFifoVide(N);
FIFOn = CreeFifoVide(N/2);
FIFOs = CreeFifoVide(N/2);
FIFOe = CreeFifoVide(N/2);
FIFOo = CreeFifoVide(N/2);
if ((FIFO == NULL) && (FIFOn == NULL) && (FIFOs == NULL) && (FIFOe == NULL) && (FIFOo == NULL))
{ fprintf(stderr, "lsquel() : CreeFifoVide failed\n");
return(0);
}
/* ================================================ */
/* DEBUT ALGO */
/* ================================================ */
/* ========================================================= */
/* INITIALISATION DES FIFOs: empile les voisins des minima */
/* ========================================================= */
for (x = 0; x < N; x++)
{
if (M[x] != 0) /* le pixel appartient a un minimum */
{
Set(x, MINI);
y = voisin(x, NORD, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOn, y); Set(y, EN_FIFO); }
#ifdef DIAG
y = voisin(x, NORD+1, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOn, y); Set(y, EN_FIFO); }
#endif
y = voisin(x, EST, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOe, y); Set(y, EN_FIFO); }
#ifdef DIAG
y = voisin(x, EST+1, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOe, y); Set(y, EN_FIFO); }
#endif
y = voisin(x, SUD, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOs, y); Set(y, EN_FIFO); }
#ifdef DIAG
y = voisin(x, SUD+1, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOs, y); Set(y, EN_FIFO); }
#endif
y = voisin(x, OUEST, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOo, y); Set(y, EN_FIFO); }
#ifdef DIAG
y = voisin(x, OUEST+1, rs, N);
if ((y!=-1) && (M[y]==0) && !IsSet(y,EN_FIFO) && nonbord(y,rs,N))
{ FifoPush(FIFOo, y); Set(y, EN_FIFO); }
#endif
} /* if (M[x] != 0) */
} /* for x */
freeimage(lab);
FIFOna = CreeFifoVide(N/4);
FIFOsa = CreeFifoVide(N/4);
FIFOea = CreeFifoVide(N/4);
FIFOoa = CreeFifoVide(N/4);
if ((FIFOna == NULL) && (FIFOsa == NULL) && (FIFOea == NULL) && (FIFOoa == NULL))
{ fprintf(stderr, "lsquel() : CreeFifoVide failed\n");
return(0);
}
/* ================================================ */
/* DEBUT SATURATION */
/* ================================================ */
niter = 0;
while (! (FifoVide(FIFOn) && FifoVide(FIFOe) && FifoVide(FIFOs) && FifoVide(FIFOo)))
{
niter++;
while (! FifoVide(FIFOn))
{
x = FifoPop(FIFOn);
UnSet(x, EN_FIFO);
if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil))
{ /* modifie l'image le cas echeant */
testmini(SOURCE, x, rs, N, FIFO); /* reactualise l'image MINI */
empilevoisins(x, rs, N, FIFOna, FIFOea, FIFOsa, FIFOoa);
} /* if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil)) */
} /* while (! FifoVide(FIFOn)) */
while (! FifoVide(FIFOs))
{
x = FifoPop(FIFOs);
UnSet(x, EN_FIFO);
if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil))
{ /* modifie l'image le cas echeant */
testmini(SOURCE, x, rs, N, FIFO); /* reactualise l'image MINI */
empilevoisins(x, rs, N, FIFOna, FIFOea, FIFOsa, FIFOoa);
} /* if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil)) */
} /* while (! FifoVide(FIFOs)) */
while (! FifoVide(FIFOe))
{
x = FifoPop(FIFOe);
UnSet(x, EN_FIFO);
if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil))
{ /* modifie l'image le cas echeant */
testmini(SOURCE, x, rs, N, FIFO); /* reactualise l'image MINI */
empilevoisins(x, rs, N, FIFOna, FIFOea, FIFOsa, FIFOoa);
} /* if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil)) */
} /* while (! FifoVide(FIFOe)) */
while (! FifoVide(FIFOo))
{
x = FifoPop(FIFOo);
UnSet(x, EN_FIFO);
if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil))
{ /* modifie l'image le cas echeant */
testmini(SOURCE, x, rs, N, FIFO); /* reactualise l'image MINI */
empilevoisins(x, rs, N, FIFOna, FIFOea, FIFOsa, FIFOoa);
} /* if (testabaisse(SOURCE, x, rs, N, seuil, niter, niseuil)) */
} /* while (! FifoVide(FIFOo)) */
FIFOtmp = FIFOn; FIFOn = FIFOna; FIFOna = FIFOtmp;
FIFOtmp = FIFOe; FIFOe = FIFOea; FIFOea = FIFOtmp;
FIFOtmp = FIFOs; FIFOs = FIFOsa; FIFOsa = FIFOtmp;
FIFOtmp = FIFOo; FIFOo = FIFOoa; FIFOoa = FIFOtmp;
} /* while (! (FifoVide(FIFOn) && FifoVide(FIFOe) && FifoVide(FIFOs) && FifoVide(FIFOo))) */
/* ================================================ */
/* UN PEU DE MENAGE */
/* ================================================ */
IndicsTermine();
FifoTermine(FIFO);
FifoTermine(FIFOn);
FifoTermine(FIFOe);
FifoTermine(FIFOs);
FifoTermine(FIFOo);
FifoTermine(FIFOna);
FifoTermine(FIFOea);
FifoTermine(FIFOsa);
FifoTermine(FIFOoa);
#ifdef PERF
save_time(N, read_chrono(&chrono1), "lsquel", image->name);
#endif
return(1);
}
/* ==================================== */
int32_t lkern(struct xvimage *image, int32_t connex)
/* ==================================== */
{
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
int32_t k; /* index muet */
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t N = rs * cs; /* taille image */
uint8_t *F = UCHARDATA(image); /* l'image de depart */
Fahp * FAHP;
int32_t t4mm, t4m, t8p, t8pp;
#ifdef DEBUG
uint8_t oldFx;
#endif
if (depth(image) != 1)
{
fprintf(stderr, "lkern: cette version ne traite pas les images volumiques\n");
exit(0);
}
IndicsInit(N);
FAHP = CreeFahpVide(N);
if (FAHP == NULL)
{ fprintf(stderr, "lkern() : CreeFahpVide failed\n");
return(0);
}
/* ================================================ */
/* DEBUT ALGO */
/* ================================================ */
/* empile tous les voisins des points du bord */
for (x = rs + 1, y = (cs-2) * rs + 1; x < 2*rs-1; x++, y++)
{
FahpPush(FAHP, x, F[x]); Set(x, EN_FAHP);
FahpPush(FAHP, y, F[y]); Set(y, EN_FAHP);
}
for (x = 2*rs+1 , y = 3*rs-2; x < (cs-2)*rs+1; y += rs, x += rs)
{
FahpPush(FAHP, x, F[x]); Set(x, EN_FAHP);
FahpPush(FAHP, y, F[y]); Set(y, EN_FAHP);
}
saturation(rs, cs, N, F, FAHP);
/* met a 0 les puits et les interieurs de plateaux (T-- = 0) */
/* et empile les voisins */
for (x = 0; x < N; x++)
if ((x%rs != rs-1) && (x >= rs) && (x%rs != 0) && (x < N-rs) && /* non point de bord */
(F[x] != 0))
{
nbtopo(F, x, rs, N, &t4mm, &t4m, &t8p, &t8pp);
if (t4mm == 0)
{
F[x] = 0;
for (k = 0; k < 8; k += 1) /* parcourt les voisins en 8-connexite */
{ /* pour empiler les voisins */
y = voisin(x, k, rs, N); /* non deja empiles */
if ((y != -1) && (F[y] > 0) && (! IsSet(y, EN_FAHP)))
{
FahpPush(FAHP, y, F[y]);
Set(y, EN_FAHP);
} /* if y */
} /* for k */
} /* if (t4mm == 0) */
saturation(rs, cs, N, F, FAHP);
} /* for (x = 0; x < N; x++) */
/* ================================================ */
/* UN PEU DE MENAGE */
/* ================================================ */
IndicsTermine();
FahpTermine(FAHP);
return(1);
}
/* ==================================== */
int32_t lamont(
struct xvimage *m,
struct xvimage *f,
int32_t connex,
int32_t strict)
/* connex : 4, 8 (en 2D), 6, 18, 26 (en 3D) */
/* ==================================== */
#undef F_NAME
#define F_NAME "lamont"
{
int32_t i, j, k; /* index muet de pixel */
int32_t rs = rowsize(f); /* taille ligne */
int32_t cs = colsize(f); /* taille colonne */
int32_t ds = depth(f); /* nb plans */
int32_t ps = rs * cs; /* taille plan */
int32_t N = ps * ds; /* taille image */
int32_t *F = SLONGDATA(f);
uint8_t *M = UCHARDATA(m);
Fifo * FIFO;
int32_t incr_vois;
if ((rowsize(m) != rs) || (colsize(m) != cs) || (depth(m) != ds))
{
fprintf(stderr, "%s: incompatible sizes\n", F_NAME);
return 0;
}
if ((datatype(m) != VFF_TYP_1_BYTE) || (datatype(f) != VFF_TYP_4_BYTE))
{
fprintf(stderr, "%s: incompatible types\n", F_NAME);
return 0;
}
switch (connex)
{
case 4: incr_vois = 2; break;
case 8: incr_vois = 1; break;
} /* switch (connex) */
FIFO = CreeFifoVide(N);
if (FIFO == NULL)
{ fprintf(stderr,"%s : CreeFifoVide failed\n", F_NAME);
return(0);
}
for (i = 0; i < N; i++) if (M[i]) FifoPush(FIFO, i);
if ((connex == 4) || (connex == 8))
{
if (ds != 1)
{
fprintf(stderr,"%s : connexity 4 or 8 not defined for 3D\n", F_NAME);
return(0);
}
if (strict)
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 8; k += incr_vois)
{
j = voisin(i, k, rs, N);
if ((j != -1) && !M[j] && (F[j] > F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
else
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 8; k += incr_vois)
{
j = voisin(i, k, rs, N);
//printf("i=%d ; j=%d ; Mj=%d ; Fj=%ld ; Fi=%ld\n", i, j, M[j], F[j], F[i]);
if ((j != -1) && !M[j] && (F[j] >= F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 6)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 6 not defined for 2D\n", F_NAME);
return(0);
}
if (strict)
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k <= 10; k += 2)
{
j = voisin6(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] > F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
else
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k <= 10; k += 2)
{
j = voisin6(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] >= F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 18)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 18 not defined for 2D\n", F_NAME);
return(0);
}
if (strict)
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 18; k += 1)
{
j = voisin18(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] > F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
else
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 18; k += 1)
{
j = voisin18(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] >= F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 26)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 26 not defined for 2D\n", F_NAME);
return(0);
}
if (strict)
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 26; k += 1)
{
j = voisin26(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] > F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
else
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 26; k += 1)
{
j = voisin26(i, k, rs, ps, N);
if ((j != -1) && !M[j] && (F[j] >= F[i])) { FifoPush(FIFO, j); M[j] = 255; }
} /* for k */
} /* while ! FifoVide */
}
FifoTermine(FIFO);
return 1;
} /* lamont() */
/* ==================================== */
int32_t lselectcomp(
struct xvimage *f,
int32_t connex,
int32_t x,
int32_t y,
int32_t z)
/* extrait la composante connexe de f (image binaire)
qui contient le point (x,y,z) */
/* connex : 4, 8 (en 2D), 6, 18, 26 (en 3D) */
/* connex : 60, 260 (en 3D): idem 6 et 26 mais dans le plan xy seulement */
/* ==================================== */
#undef F_NAME
#define F_NAME "lselectcomp"
{
int32_t i; /* index muet de pixel */
int32_t j; /* index muet (generalement un voisin de x) */
int32_t k; /* index muet */
int32_t rs = rowsize(f); /* taille ligne */
int32_t cs = colsize(f); /* taille colonne */
int32_t ds = depth(f); /* nb plans */
int32_t ps = rs * cs; /* taille plan */
int32_t N = ps * ds; /* taille image */
uint8_t *F = UCHARDATA(f);
Fifo * FIFO;
int32_t incr_vois;
switch (connex)
{
case 4: incr_vois = 2; break;
case 8: incr_vois = 1; break;
} /* switch (connex) */
FIFO = CreeFifoVide(N);
if (FIFO == NULL)
{ fprintf(stderr,"%s : CreeFifoVide failed\n", F_NAME);
return(0);
}
for (i = 0; i < N; i++) if (F[i]) F[i] = 254;
i = z*ps + y*rs + x;
if (F[i]) { FifoPush(FIFO, i); F[i] += 1; }
if ((connex == 4) || (connex == 8))
{
if (ds != 1)
{ fprintf(stderr,"%s : connexity 4 or 8 not defined for 3D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 8; k += incr_vois)
{
j = voisin(i, k, rs, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 6)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 6 not defined for 2D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k <= 10; k += 2)
{
j = voisin6(i, k, rs, ps, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 18)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 18 not defined for 2D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 18; k += 1)
{
j = voisin18(i, k, rs, ps, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 26)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 26 not defined for 2D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k < 26; k += 1)
{
j = voisin26(i, k, rs, ps, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 60)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 6 not defined for 2D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 0; k <= 6; k += 2)
{
j = voisin6(i, k, rs, ps, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
else if (connex == 260)
{
if (ds == 1)
{ fprintf(stderr,"%s : connexity 26 not defined for 2D\n", F_NAME);
return(0);
}
while (! FifoVide(FIFO))
{
i = FifoPop(FIFO);
for (k = 9; k <= 16; k += 1)
{
j = voisin26(i, k, rs, ps, N);
if ((j != -1) && (F[j]==254)) { FifoPush(FIFO, j); F[j] += 1; }
} /* for k */
} /* while ! FifoVide */
}
FifoTermine(FIFO);
for (i = 0; i < N; i++) if (F[i] != 255) F[i] = 0;
return 1;
} /* lselectcomp() */
/*=====================================================================================*/
float * Overlap(struct xvimage * Isegment, struct xvimage * Imask, int nb_classes)
/*=====================================================================================*/
// Computes the overlap score between a segment and the ground truth.
// Overlap scores are given for each classes and stacked in a tensor.
// inputs : * segment: binary image: foreground backround segmentation
// * mask: ground truth image: integers between 1 and 22
{
int i, j, k, p, q;
// get pointer to Isegment and Imask
uint8_t *segment = UCHARDATA(Isegment);
uint8_t *mask = UCHARDATA(Imask);
int rs = rowsize(Isegment);
int cs = colsize(Isegment);
int N = rs*cs;
Lifo * LIFO;
LIFO = CreeLifoVide(N);
if (LIFO == NULL) { fprintf(stderr, "Overlap : CreeLifoVide failed\n"); exit(0); }
float * overlaping_class = (float*)calloc(nb_classes ,sizeof(float));
float * union_class = (float*)calloc(nb_classes ,sizeof(float));
uint8_t * Mrk = (uint8_t*)calloc(N ,sizeof(uint8_t));
if (Mrk == NULL) { fprintf(stderr, "Overlap : malloc failed\n"); exit(0); }
// first pass to count the nb of different ground truth class intersecting with the segment
for (i=0;i<N;i++)
if (segment[i]==255)
overlaping_class[mask[i]-1]++; // useful for inter
// second pass to compute the union for each present class
for (j=0;j<nb_classes;j++)
{
if (overlaping_class[j]>0.5) //for each class present in the segment
{
for (i=0;i<N;i++) // for each pixel
{
if ((segment[i]==255)&&(mask[i]==j+1))
{
LifoPush(LIFO, i);
Mrk[i] = true;
}
}
union_class[j] = overlaping_class[j];
while (!LifoVide(LIFO))
{
p = LifoPop(LIFO);
Mrk[p]=true;
for (k = 0; k < 8; k += 2)
{
q = voisin(p, k, rs, N);
if (q!=-1)
if ((Mrk[q]==false)&&(mask[q]==mask[p]))
{
union_class[j]++;
LifoPush(LIFO, q);
Mrk[q]=true;
}
}
}
//last pass: overlap = intersection/union
overlaping_class[j]=overlaping_class[j]/union_class[j];
}
}
LifoTermine(LIFO);
free(Mrk);
free(union_class);
return overlaping_class;
}