/* ==================================== */
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;
}
/* =============================================================== */
int32_t l3dseltype(struct xvimage * k, uint8_t d1, uint8_t d2, uint8_t a1, uint8_t a2, uint8_t b1, uint8_t b2)
/* =============================================================== */
/*
Selects the elements x of the Khalimsky volume \b k
which satisfy the following inequalities :
\b a1 <= a(x) <= \b a2
\b b1 <= b(x) <= \b b2
\b d1 <= d(x) <= \b d2
where
d(x) = dimension of x
a(x) = number of elements under x of dimension d(x) - 1
b(x) = number of elements over x of dimension d(x) + 1
*/
#undef F_NAME
#define F_NAME "l3dseltype"
{
index_t rs, cs, ps, ds, N, i1, j1, k1, i2, j2, k2, x, y;
uint8_t * K;
struct xvimage * kp;
uint8_t * KP;
index_t tab[27]; int32_t n, u, a, b, d;
rs = rowsize(k);
cs = colsize(k);
ds = depth(k);
ps = rs * cs;
N = ps * ds;
K = UCHARDATA(k);
kp = allocimage(NULL, rs, cs, ds, VFF_TYP_1_BYTE);
if (kp == NULL)
{
fprintf(stderr,"%s : allocimage failed\n", F_NAME);
return(0);
}
KP = UCHARDATA(kp);
memset(KP, 0, N);
for (k1 = 0; k1 < ds; k1++)
for (j1 = 0; j1 < cs; j1++)
for (i1 = 0; i1 < rs; i1++)
{
x = k1*ps + j1*rs + i1;
d = DIM3D(i1,j1,k1);
if (K[x] && (d1 <= d) && (d <= d2))
{
Alphacarre3d(rs, cs, ds, i1, j1, k1, tab, &n);
for (a = u = 0; u < n; u++) /* parcourt les eventuels alpha-voisins */
{
y = tab[u];
i2 = y%rs; j2 = (y%ps)/rs; k2 = y/ps;
if (K[y] && (DIM3D(i2,j2,k2) == (d-1))) a++;
}
if ((a1 <= a) && (a <= a2))
{
Betacarre3d(rs, cs, ds, i1, j1, k1, tab, &n);
for (b = u = 0; u < n; u++) /* parcourt les eventuels beta-voisins */
{
y = tab[u];
i2 = y%rs; j2 = (y%ps)/rs; k2 = y/ps;
if (K[y] && (DIM3D(i2,j2,k2) == (d+1))) b++;
}
if ((b1 <= b) && (b <= b2))
{
KP[x] = NDG_MAX;
}
}
}
} // for k1, j1, i1
for (x = 0; x < N; x++) K[x] = KP[x];
freeimage(kp);
return 1;
} /* l3dseltype() */
/* =============================================================== */
int32_t ltaf(struct xvimage * image, int32_t connexmin, int32_t rayon)
/* =============================================================== */
#undef F_NAME
#define F_NAME "ltaf"
{
struct xvimage * copy;
int32_t rs, cs, ds, ps, N;
int32_t ndes;
rs = rowsize(image); /* taille ligne */
cs = colsize(image); /* taille colonne */
ps = rs * cs; /* taille plan */
ds = depth(image); /* nombre plans */
N = ds * ps; /* taille image */
if (rayon == -1) rayon = 2000000000;
if (ds == 1) /* ======================= 2D ========================*/
{
copy = copyimage(image);
if (copy == NULL)
{
fprintf(stderr, "%s: copyimage failed\n", F_NAME);
return 0;
}
do
{
if (! lhthindelta(image, NULL, rayon, connexmin))
{
fprintf(stderr, "%s: lhthindelta failed\n", F_NAME);
return 0;
}
ndes = p_despics(image, connexmin);
if (! lhtkernu(image, copy, connexmin))
{
fprintf(stderr, "%s: lhtkernu failed\n", F_NAME);
return 0;
}
memcpy(UCHARDATA(copy), UCHARDATA(image), N);
if (! lhthickdelta(image, NULL, rayon, connexmin))
{
fprintf(stderr, "%s: lhthickdelta failed\n", F_NAME);
return 0;
}
ndes += p_despuits(image, connexmin);
if (! lhtkern(image, copy, connexmin))
{
fprintf(stderr, "%s: lhtkern failed\n", F_NAME);
return 0;
}
if (ndes) memcpy(UCHARDATA(copy), UCHARDATA(image), N);
} while (ndes);
}
else /* ============================== 3D ================================*/
{
fprintf(stderr, "%s: 3D Not Yet Implemented\n", F_NAME);
return 0;
}
freeimage(copy);
return 1;
} /* ltaf() */
/* ==================================== */
int32_t lmaxdiameter(struct xvimage *image, int32_t connex)
/* ==================================== */
{
int32_t x; /* index muet de pixel */
int32_t rs = rowsize(image); /* taille ligne */
int32_t cs = colsize(image); /* taille colonne */
int32_t ds = depth(image); /* nb plans */
int32_t ps = rs * cs; /* taille plan */
int32_t N = ps * ds; /* taille image */
uint8_t *I = UCHARDATA(image); /* l'image de depart */
struct xvimage *tmp;
uint8_t *T;
//GUJUN
int32_t x1, x1max;
int32_t y1, y1max;
int32_t z1, z1max;
int32_t x2, x2max;
int32_t y2, y2max;
int32_t z2, z2max;
double distance = -1;
double temp = 0;
int32_t i;
switch(datatype(image))
{
case VFF_TYP_1_BYTE:
tmp = copyimage(image);
if (tmp == NULL)
{
fprintf(stderr, "lmaxdiameter: copyimage failed\n");
return 0;
}
T = UCHARDATA(tmp);
switch (connex)
{
case 4:
for (x = 0; x < N; x++)
if (T[x] && (nbvoisc8(T,x,rs,N)) == 0) I[x] = NDG_MIN;
break;
case 8:
for (x = 0; x < N; x++)
if (T[x] && (nbvoisc4(T,x,rs,N)) == 0) I[x] = NDG_MIN;
break;
case 6:
for (x = 0; x < N; x++)
if (T[x] && (mctopo3d_nbvoisc6(T,x,rs,ps,N)) == 0) I[x] = NDG_MIN;
break;
case 18:
for (x = 0; x < N; x++)
if (T[x] && (mctopo3d_nbvoisc18(T,x,rs,ps,N)) == 0) I[x] = NDG_MIN;
break;
case 26:
for (x = 0; x < N; x++)
if (T[x] && (mctopo3d_nbvoisc26(T,x,rs,ps,N)) == 0) I[x] = NDG_MIN;
break;
default:
fprintf(stderr, "lmaxdiameter: mauvaise connexite: %d\n", connex);
return 0;
} /* switch (connex) */
//GUJun
//Deux dimentions x et y
if ((connex == 4)||(connex == 8))
{
for( x = 0; x < N; x++)
{
// Le premier point au border
if( I[x] != NDG_MIN )
{
x1 = x%rs;
y1 = x/rs;
for (i = x+1; i < N; i++)
{
//Le deuxième point au border
if( I[i] != NDG_MIN )
{
x2 = i%rs;
y2 = i/rs;
temp = sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
//Le plus int32_t axe
if (temp > distance)
{
distance = temp;
x1max = x1; y1max = y1;
x2max = x2; y2max = y2;
}
}
}
}
}
for( x = 0; x < N; x++) I[x] = NDG_MIN;
I[x1max+y1max*rs] = NDG_MAX;
I[x2max+y2max*rs] = NDG_MAX;
}
//Trois dimentions x,y et z
else if ((connex == 6)||(connex == 18)||(connex == 26))
{
for ( x = 0; x < N; x++)
{
if( I[x] != NDG_MIN )
{
z1 = x/ps;
x1 = (x%ps)%rs;
y1 = (x%ps)/rs;
for(i = x+1; i < N; i++)
{
if( I[i] != NDG_MIN )
{
z2 = i/ps;
x2 = (i%ps)%rs;
y2 = (i%ps)/rs;
temp = sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2) + (z1-z2)*(z1-z2));
if (temp > distance)
{
distance = temp;
x1max = x1; y1max = y1; z1max = z1;
x2max = x2; y2max = y2; z2max = z2;
}
}
}
}
}
for( x = 0; x < N; x++) I[x] = NDG_MIN;
I[x1max+y1max*rs+z1max*ps] = NDG_MAX;
I[x2max+y2max*rs+z2max*ps] = NDG_MAX;
}
//GUJun
break;
default:
fprintf(stderr,"lmaxdiameter() : bad data type %d\n", datatype(image));
return 0;
} /* switch(datatype(image)) */
if (distance == -1)
{
fprintf(stderr,"lmaxdiameter() : not enough data\n");
return 0;
}
freeimage(tmp);
return(1);
}
/* ==================================== */
int32_t lfiltreordre3d(struct xvimage *f, struct xvimage *m, int32_t xc, int32_t yc, int32_t zc, double r)
/* r : rang ramene a une echelle 0..1 (ex: 0.5 -> filtre median) */
/* m : masque representant l'element structurant */
/* xc, yc, zc : coordonnees du "centre" de l'element structurant */
/* ==================================== */
{
int32_t rang;
int32_t x,y,z;
register int32_t i, j, k; /* index muet */
register int32_t n, o, p; /* 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 */
int32_t rsm = rowsize(m); /* taille ligne masque */
int32_t csm = colsize(m); /* taille colonne masque */
int32_t dsm = depth(m); /* nb plans masque */
int32_t psm = rsm * csm; /* taille plan masque */
int32_t Nm = psm * dsm; /* taille masque */
uint8_t *M = UCHARDATA(m);
uint8_t *F = UCHARDATA(f);
uint8_t *H; /* image de travail */
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 *tab_es_z; /* liste des coord. z des points de l'e.s. */
uint8_t *tab_es_val; /* liste des valeurs des points de l'e.s. */
int32_t c;
H = (uint8_t *)calloc(1,N*sizeof(char));
if (H == NULL)
{
fprintf(stderr,"lfiltreordre3d() : malloc failed for H\n");
return(0);
}
for (x = 0; x < N; x++) H[x] = F[x];
nptb = 0;
for (i = 0; i < Nm; i += 1)
if (M[i])
nptb += 1;
rang = (int32_t)((double)(nptb - 1) * r);
#ifdef VERBOSE
printf("r = %g ; nptb = %d ; rang = %d\n", r, nptb, rang);
#endif
tab_es_x = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_y = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_z = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_val = (uint8_t *)calloc(1,nptb * sizeof(char));
if ((tab_es_x == NULL) || (tab_es_y == NULL) || (tab_es_z == NULL) || (tab_es_val == NULL))
{
fprintf(stderr,"lfiltreordre3d() : malloc failed for tab_es\n");
return(0);
}
n = 0;
for (k = 0; k < dsm; k += 1)
for (j = 0; j < csm; j += 1)
for (i = 0; i < rsm; i += 1)
if (M[k * psm + j * rsm + i])
{
tab_es_x[n] = i;
tab_es_y[n] = j;
tab_es_z[n] = k;
n += 1;
}
for (z = 0; z < ds; z++)
for (y = 0; y < cs; y++)
for (x = 0; x < rs; x++)
{
for (c = 0; c < nptb ; c += 1)
{
o = z + tab_es_z[c] - zc;
p = y + tab_es_y[c] - yc;
n = x + tab_es_x[c] - xc;
if ((o >= 0) && (o < ds) && (p >= 0) && (p < cs) && (n >= 0) && (n < rs))
tab_es_val[c] = H[o * ps + p * rs + n];
else
tab_es_val[c] = 0;
}
F[z * ps + y * rs + x] = lfiltreordre_SelectionStochastique(tab_es_val, 0, nptb - 1, rang);
}
free(H);
free(tab_es_x);
free(tab_es_y);
free(tab_es_z);
free(tab_es_val);
return 1;
} /* lfiltreordre3d() */
/* =============================================================== */
int32_t latf_old(struct xvimage * image, int32_t connexmin, int32_t rayonmin, int32_t rayonmax)
/* =============================================================== */
#undef F_NAME
#define F_NAME "latf"
{
struct xvimage * copy;
int32_t rayon;
int32_t rs, cs, ds, ps, N;
int32_t ndes;
rs = rowsize(image); /* taille ligne */
cs = colsize(image); /* taille colonne */
ps = rs * cs; /* taille plan */
ds = depth(image); /* nombre plans */
N = ds * ps; /* taille image */
if (ds == 1) /* ======================= 2D ========================*/
{
if (rayonmin == 0)
{
p_despics(image, connexmin);
p_despuits(image, connexmin);
rayonmin++;
}
copy = copyimage(image);
if (copy == NULL)
{
fprintf(stderr, "%s: copyimage failed\n", F_NAME);
return 0;
}
for (rayon = rayonmin; rayon <= rayonmax; rayon++)
{
#ifdef VERBOSE
fprintf(stderr, "%s: rayon = %d\n", F_NAME, rayon);
#endif
do
{
if (! lhthindelta(image, NULL, rayon, connexmin))
{
fprintf(stderr, "%s: lhthindelta failed\n", F_NAME);
return 0;
}
ndes = p_despics(image, connexmin);
if (! lhtkernu(image, copy, connexmin))
{
fprintf(stderr, "%s: lhtkernu failed\n", F_NAME);
return 0;
}
} while (ndes);
memcpy(UCHARDATA(copy), UCHARDATA(image), N);
do
{
if (! lhthickdelta(image, NULL, rayon, connexmin))
{
fprintf(stderr, "%s: lhthickdelta failed\n", F_NAME);
return 0;
}
ndes = p_despuits(image, connexmin);
if (! lhtkern(image, copy, connexmin))
{
fprintf(stderr, "%s: lhtkern failed\n", F_NAME);
return 0;
}
} while (ndes);
if (rayon < rayonmax) memcpy(UCHARDATA(copy), UCHARDATA(image), N);
} /* for (rayon = 1; rayon <= rayonmax; rayon++) */
}
else /* ============================== 3D ================================*/
{
fprintf(stderr, "%s: 3D Not Yet Implemented\n", F_NAME);
return 0;
}
freeimage(copy);
return 1;
} /* latf_old() */
/* 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 lfiltreordre(struct xvimage *f, struct xvimage *m, int32_t xc, int32_t yc, double r)
/* r : rang ramene a une echelle 0..1 (ex: 0.5 -> filtre median) */
/* m : masque representant l'element structurant */
/* xc, yc : coordonnees du "centre" de l'element structurant */
/* ==================================== */
{
int32_t rang;
int32_t x; /* index muet de pixel */
int32_t y; /* index muet (generalement un voisin de x) */
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 */
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. */
uint8_t *tab_es_val; /* liste des valeurs des points de l'e.s. */
int32_t c;
if (depth(f) != 1)
{
fprintf(stderr, "lfiltreordre: cette version ne traite pas les images volumiques\n");
exit(0);
}
H = (uint8_t *)calloc(1,N*sizeof(char));
if (H == NULL)
{
fprintf(stderr,"lfiltreordre() : malloc failed for H\n");
return(0);
}
for (x = 0; x < N; x++) H[x] = F[x];
nptb = 0;
for (i = 0; i < Nm; i += 1)
if (M[i])
nptb += 1;
rang = (int32_t)((double)(nptb - 1) * r);
#ifdef VERBOSE
printf("r = %g ; nptb = %d ; rang = %d\n", r, nptb, rang);
#endif
tab_es_x = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_y = (int32_t *)calloc(1,nptb * sizeof(int32_t));
tab_es_val = (uint8_t *)calloc(1,nptb * sizeof(char));
if ((tab_es_x == NULL) || (tab_es_y == NULL) || (tab_es_val == NULL))
{
fprintf(stderr,"lfiltreordre() : 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++)
{
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))
tab_es_val[c] = H[l * rs + k];
else
tab_es_val[c] = 0;
}
F[y * rs + x] = lfiltreordre_SelectionStochastique(tab_es_val, 0, nptb - 1, rang);
}
free(H);
free(tab_es_x);
free(tab_es_y);
free(tab_es_val);
return 1;
} /* lfiltreordre() */
/* ==================================== */
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);
}
/* Calcul la carte de saillance à partir du CT de saillance du ga
d'origine et du flow mapping (label) du ga */
int32_t computeSaliencyMap(JCctree *CT, struct xvimage *ga, int32_t *label, int32_t *attribut)
{
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 */
int32_t u,x,y,i,j,c1;
/* la valeur maximum de l'attribut est à la racine */
double facteur = 1/(double)attribut[CT->root];
double exp = 1+log(1+attribut[CT->root]/256.0);
#ifdef LCAFAST
/* Structure de donnée pour lca fast */
int32_t logn, nbRepresent;
int32_t *Euler, *Depth, *Represent, *Number, **Minim;
Euler = (int32_t *)calloc(2*CT->nbnodes-1, sizeof(int32_t));
Represent = (int32_t *)calloc(2*CT->nbnodes-1, 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(0);
}
Minim = jccomptree_LCApreprocess(CT, Euler, Depth, Represent, Number, &nbRepresent, &logn);
//printf("LCApreprocess done\n");
#endif
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((x < 0) || (y < 0) || (x >= N) || (y >= N) ){
printf("erreur index !!!!!\n");
exit(0);
}
if(label[x] != label[y]){
#ifdef LCAFAST
c1 = Represent[jccomptree_LowComAncFast((int32_t)label[x], (int32_t)label[y], Euler, Number, Depth, Minim)];
#endif
#ifndef LCAFAST
c1 = jccomptree_LowComAncSlow(CT, (int32_t)label[x], (int32_t)label[y]);
#endif
F[u] = (uint8_t)(mcmin(pow(facteur * (double)attribut[c1], 1/exp), 1) * 255);
}
else F[u] =0;
}
/* 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((x < 0) || (y < 0) || (x >= N) || (y >= N)){
printf("erreur index !!!!!\n");
exit(0);
}
if(label[x] != label[y]){
#ifdef LCAFAST
c1 = Represent[jccomptree_LowComAncFast((int32_t)(label[x]), (int32_t)(label[y]), Euler, Number, Depth, Minim)];
#endif
#ifndef LCAFAST
c1 = jccomptree_LowComAncSlow(CT, (int32_t)label[x], (int32_t)label[y]);
#endif
if(c1 < 0){
printf("Erreur de lca pour %d %d retourne %d\n", (int32_t)(label[x]), (int32_t)(label[y]), c1);
exit(0);
}
F[u] = (uint8_t)(mcmin(pow(facteur * (double)attribut[c1], 1/exp), 1) * 255);
}
else F[u] = 0;
}
#ifdef LCAFAST
free(Euler);
free(Represent);
free(Depth);
free(Number);
free(Minim[0]);
free(Minim);
#endif
return(1);
}
/* ==================================== */
int32_t lminima(
struct xvimage *image,
char* str_connexity
)
/* ==================================== */
{
int32_t nblabels, connex, i;
// struct xvimage * image;
struct xvimage * result;
uint8_t * I;
int32_t * IL;
int32_t N;
int32_t * R;
N = rowsize(image) * colsize(image) * depth(image);
if (str_connexity[0] == 'b') {
connex = atoi(str_connexity+1);
} else
connex = atoi(str_connexity);
result = allocimage(NULL, rowsize(image), colsize(image), depth(image), VFF_TYP_4_BYTE);
if (result == NULL)
{
fprintf(stderr, "allocimage failed\n");
exit(1);
}
R = SLONGDATA(result);
if ((connex == 0) && strcmp(str_connexity, "b0") && strcmp(str_connexity, "b1"))
{
if (datatype(image) == VFF_TYP_1_BYTE)
{
uint8_t absmin;
I = UCHARDATA(image);
absmin = I[0];
for (i = 1; i < N; i++) if (I[i] < absmin) absmin = I[i];
for (i = 0; i < N; i++) if (I[i] == absmin) I[i] = NDG_MAX; else I[i] = NDG_MIN;
}
else if (datatype(image) == VFF_TYP_4_BYTE)
{
int32_t absmin;
IL = SLONGDATA(image);
absmin = IL[0];
for (i = 1; i < N; i++) if (IL[i] < absmin) absmin = IL[i];
for (i = 0; i < N; i++) if (IL[i] == absmin) IL[i] = (int32_t)NDG_MAX;
else IL[i] = (int32_t)NDG_MIN;
}
else
{
fprintf(stderr, "wrong image type\n");
exit(1);
}
}
else
{
if (! llabelextrema(image, connex, LABMIN, result, &nblabels))
{
fprintf(stderr, "llabelextrema failed\n");
exit(1);
}
#ifdef VERBOSE
printf("NOMBRE DE MINIMA : %d\n", nblabels-1);
#endif
if (datatype(image) == VFF_TYP_1_BYTE)
{
I = UCHARDATA(image);
for (i = 0; i < N; i++)
if (R[i]) I[i] = NDG_MAX; else I[i] = NDG_MIN;
}
else if (datatype(image) == VFF_TYP_4_BYTE)
{
IL = SLONGDATA(image);
for (i = 0; i < N; i++)
if (R[i]) IL[i] = (int32_t)NDG_MAX; else IL[i] = (int32_t)NDG_MIN;
}
}
freeimage(result);
return 1;
} /* lminima */
/* 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;
}
/* 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(...)
/* ==================================== */
int32_t lpoint(struct xvimage * image1, int32_t x, int32_t y, int32_t z, float v)
/* ==================================== */
#undef F_NAME
#define F_NAME "lpoint"
{
int32_t rs, cs, d, n;
rs = rowsize(image1);
cs = colsize(image1);
d = depth(image1);
n = rs * cs;
/* ---------------------------------------------------------- */
/* calcul du resultat */
/* ---------------------------------------------------------- */
if (datatype(image1) == VFF_TYP_1_BYTE)
{
uint8_t *pt1 = UCHARDATA(image1);
if ((x >= 0) && (x < rs) && (y >= 0) && (y < cs) && (z >= 0) && (z < d) &&
(v >= NDG_MIN) && (v <= NDG_MAX))
pt1[z * n + y * rs + x] = (uint8_t)v;
else
{
fprintf(stderr, "%s : out of range\n", F_NAME);
return 0;
}
}
else
if (datatype(image1) == VFF_TYP_4_BYTE)
{
int32_t *pt1 = SLONGDATA(image1);
if ((x >= 0) && (x < rs) && (y >= 0) && (y < cs) && (z >= 0) && (z < d) &&
(v >= 0))
pt1[z * n + y * rs + x] = (int32_t)v;
else
{
fprintf(stderr, "%s : out of range\n", F_NAME);
return 0;
}
}
else
if (datatype(image1) == VFF_TYP_FLOAT)
{
float *pt1 = FLOATDATA(image1);
if ((x >= 0) && (x < rs) && (y >= 0) && (y < cs) && (z >= 0) && (z < d))
pt1[z * n + y * rs + x] = v;
else
{
fprintf(stderr, "%s : out of range\n", F_NAME);
return 0;
}
}
else
{
fprintf(stderr, "%s: bad data type\n", F_NAME);
return 0;
}
return 1;
} // lpoint()
/*=====================================================================================*/
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;
}
