int
insert_ribbon_into_aseg(MRI *mri_src_aseg, MRI *mri_aseg,
MRI_SURFACE *mris_white, MRI_SURFACE *mris_pial,
int hemi)
{
MRI *mri_ribbon, *mri_white ;
int x, y, z, gm_label, wm_label, label, nbr_label, dont_change ;
if (mri_src_aseg != mri_aseg)
mri_aseg = MRIcopy(mri_src_aseg, mri_aseg) ;
gm_label = hemi == LEFT_HEMISPHERE ?
Left_Cerebral_Cortex : Right_Cerebral_Cortex ;
wm_label = hemi == LEFT_HEMISPHERE ?
Left_Cerebral_White_Matter : Right_Cerebral_White_Matter ;
mri_white = MRIclone(mri_aseg, NULL) ;
mri_ribbon = MRISribbon(mris_white, mris_pial, mri_aseg, NULL) ;
MRISfillInterior(mris_white, mri_aseg->xsize, mri_white) ;
for (x = 0 ; x < mri_aseg->width ; x++)
for (y = 0 ; y < mri_aseg->height ; y++)
for (z = 0 ; z < mri_aseg->depth ; z++)
{
if (x == Gx && y == Gy && z == Gz)
DiagBreak() ;
label = nint(MRIgetVoxVal(mri_aseg, x, y, z, 0)) ;
if (nint(MRIgetVoxVal(mri_ribbon, x, y, z, 0)) == 255) // in ribbon, set to GM
{
if (IS_CORTEX(label) || IS_WHITE_CLASS(label))
{
int xi, yi, zi, xk, yk, zk ;
// check to make sure we are really in cortex
for (dont_change = 0, xk = -1 ; xk <= 1 ; xk++)
{
xi = mri_aseg->xi[xk+x] ;
for (yk = -1 ; yk <= 1 ; yk++)
{
yi = mri_aseg->yi[yk+y] ;
for (zk = -1 ; zk <= 1 ; zk++)
{
zi = mri_aseg->zi[zk+z] ;
nbr_label = (int)MRIgetVoxVal(mri_aseg, xi, yi, zi, 0) ;
switch (nbr_label)
{
default:
break ;
case Left_Hippocampus:
case Right_Hippocampus:
case Left_Amygdala:
case Right_Amygdala:
case Left_VentralDC:
case Right_VentralDC:
case Brain_Stem:
case Left_Lateral_Ventricle:
case Right_Lateral_Ventricle:
case Left_Inf_Lat_Vent:
case Right_Inf_Lat_Vent:
case Left_Thalamus_Proper:
case Right_Thalamus_Proper:
case Left_choroid_plexus:
case Right_choroid_plexus:
case CC_Posterior:
case CC_Mid_Posterior:
case CC_Central:
case CC_Mid_Anterior:
case CC_Anterior:
dont_change = 1 ;
break ;
}
}
}
}
if (dont_change == 0)
MRIsetVoxVal(mri_aseg, x, y, z, 0, gm_label) ;
}
}
else // not in ribbon
{
if (MRIgetVoxVal(mri_white, x, y, z, 0) > 0) // inside white surface - disambiguate
{
if (label == gm_label) // gm inside white surface should be wm
MRIsetVoxVal(mri_aseg, x, y, z, 0, wm_label) ;
}
else if (label == gm_label) // gm outside ribbon should be unknown
MRIsetVoxVal(mri_aseg, x, y, z, 0, Unknown) ;
}
}
if (Gdiag & DIAG_WRITE && DIAG_VERBOSE_ON)
{
MRIwrite(mri_ribbon, "r.mgz") ;
MRIwrite(mri_white, "w.mgz");
}
MRIfree(&mri_ribbon) ; MRIfree(&mri_white) ;
return(NO_ERROR) ;
}
int main(int argc, char *argv[])
{
MRI *mri_seg1, *mri_seg2;
int nargs, ac;
char **av;
int width, height, depth, x, y, z, f, nframes;
int v1, v2;
int i, skipped;
FILE *log_fp;
int Volume_union[MAX_CLASSES];
int Volume_from1[MAX_CLASSES];
int Volume_from2[MAX_CLASSES];
int Volume_overlap[MAX_CLASSES];
int subcorvolume1, subcorvolume2;
int subcorvolume_overlap;
double mean1, std1, mean2, std2;
float correct_ratio[MAX_CLASSES];
float correct_ratio2[MAX_CLASSES];
Progname = argv[0];
nargs =
handle_version_option
(argc, argv,
"$Id: mri_compute_seg_overlap.c,v 1.18 2015/08/28 18:05:30 greve Exp $",
"$Name: $");
if (nargs && argc - nargs == 1)
{
exit (0);
}
argc -= nargs;
ac = argc ;
av = argv ;
for ( ; argc > 1 && ISOPTION(*argv[1]) ; argc--, argv++)
{
nargs = get_option(argc, argv) ;
argc -= nargs ;
argv += nargs ;
}
if (argc != 3)
{
usage(1);
}
mri_seg1 = MRIread(argv[1]) ;
if (!mri_seg1)
ErrorExit(ERROR_BADPARM, "%s: could not read label volume1 %s",
Progname, argv[1]) ;
mri_seg2 = MRIread(argv[2]) ;
if (!mri_seg2)
ErrorExit(ERROR_BADPARM, "%s: could not read label volume2 %s",
Progname, argv[2]) ;
if ((mri_seg1->width != mri_seg2->width) ||
(mri_seg1->height != mri_seg2->height) ||
(mri_seg1->depth != mri_seg2->depth))
ErrorExit(ERROR_BADPARM,
"%s: two input label volumes have different sizes \n",
Progname);
for (i=0; i < MAX_CLASSES; i++)
{
Volume_union[i] = 0;
Volume_overlap[i] = 0;
Volume_from1[i] = 0;
Volume_from2[i] = 0;
}
width = mri_seg1->width ;
height = mri_seg1->height ;
depth = mri_seg1->depth ;
nframes = mri_seg1->nframes ;
if (nframes == 0)
{
nframes = 1;
}
subcorvolume_overlap = 0;
subcorvolume1 = 0;
subcorvolume2 = 0;
for (f = 0 ; f < nframes ; f++) {
for (z = 0 ; z < depth ; z++) {
for (y = 0 ; y < height ; y++) {
for (x = 0 ; x < width ; x++) {
v1 = (int) MRIgetVoxVal(mri_seg1,x,y,z,f);
v2 = (int) MRIgetVoxVal(mri_seg2,x,y,z,f);
if (v1 > MAX_CLASS_NUM || v1 <= 0 || v2 > MAX_CLASS_NUM || v2 <= 0) continue;
/* do not include these in the overall Dice coefficient calculations:
Left/Right-Cerebral-White-Matter (labels 2 and 41),
Left/Right-Cerebral-Cortex (labels 3 and 42),
Left/Right-Accumbens-area (labels 26 and 58)
Notice that these labels are not included in the 'if' checks: */
if (v1 == v2){
if (all_labels_flag) subcorvolume_overlap++;
else if (isOverallDiceLabel(v1)) subcorvolume_overlap++;
}
if(all_labels_flag) subcorvolume1++;
else if (isOverallDiceLabel(v1)) subcorvolume1++;
if (all_labels_flag) subcorvolume2++;
else if (isOverallDiceLabel(v2)) subcorvolume2++;
Volume_from1[v1]++;
Volume_from2[v2]++;
if (v1 == v2) {
Volume_overlap[v1]++;
Volume_union[v1]++;
}
else {
Volume_union[v1]++;
Volume_union[v2]++;
}
}
}
}
}
for (i=0; i < MAX_CLASSES; i++)
{
correct_ratio[i] =
(double)Volume_overlap[i]/((double)Volume_union[i] + 1e-10);
correct_ratio2[i] =
(double)Volume_overlap[i]*2.0/
((double)Volume_from1[i] + (double)Volume_from2[i] + 1e-10);
}
printf("Jaccard Coefficients:\n");
mean1 = 0;
std1 = 0;
if (all_labels_flag)
{
num_all_labels = 0;
for (i=0; i < MAX_CLASSES; i++)
{
if(correct_ratio[i] > 0.0) // This will include zero overlap areas as well (not just non-existing labels. If it is a problem, should flag existing labels....
{
printf("correct ratio for label %d = %g\n",i, correct_ratio[i]);
mean1 += correct_ratio[i];
std1 += correct_ratio[i] * correct_ratio[i];
num_all_labels++;
}
}
mean1 /= num_all_labels;
std1 /= num_all_labels;
std1 = sqrt(std1 - mean1*mean1);
printf("mean +/- std = %6.4f +/- %6.4f\n", mean1, std1);
}
else
{
for (skipped = i=0; i < num_labels; i++)
{
if (do_cortex == 0 && IS_CORTEX(labels_of_interest[i]))
{
skipped++ ;
continue ;
}
if (do_wm == 0 && IS_WHITE_CLASS(labels_of_interest[i]))
{
skipped++ ;
continue ;
}
printf("correct ratio for label %d = %g\n",
labels_of_interest[i], correct_ratio[labels_of_interest[i]]);
mean1 += correct_ratio[labels_of_interest[i]];
std1 += correct_ratio[labels_of_interest[i]] *
correct_ratio[labels_of_interest[i]];
}
mean1 /= (num_labels-skipped);
std1 /= (num_labels-skipped);
std1 = sqrt(std1 - mean1*mean1);
printf("mean +/- std = %6.4f +/- %6.4f\n", mean1, std1);
}
if(table_fname) tablefp = fopen(table_fname, "w") ;
printf("Dice Coefficients:\n");
// printf("ratio of overlap to volume of input1:\n");
mean2 = 0;
std2 = 0;
if (all_labels_flag)
{
num_all_labels = 0;
for (i=0; i < MAX_CLASSES; i++)
{
if(correct_ratio2[i] > 0.0) // This will include zero overlap areas as well (not just non-existing labels. If it is a problem, should flag existing labels....
{
all_labels_of_interest[num_all_labels] = i;
if(ctab == NULL) printf("label %d = %g\n",i, correct_ratio2[i]);
else printf("%4d %s %8.6lf\n",i, ctab->entries[i]->name,correct_ratio2[i]);
mean2 += correct_ratio2[i];
std2 += correct_ratio2[i]*correct_ratio2[i];
num_all_labels++;
}
}
mean2 /= num_all_labels;
std2 /= num_all_labels;
std2 = sqrt(std2 - mean2*mean2);
printf("mean +/- std = %6.4f +/- %6.4f \n", mean2, std2);
}
else {
for (skipped=i=0; i < num_labels; i++) {
if (do_cortex == 0 && IS_CORTEX(labels_of_interest[i])) {
skipped++ ;
continue ;
}
if (do_wm == 0 && IS_WHITE_CLASS(labels_of_interest[i])) {
skipped++ ;
continue ;
}
int j = labels_of_interest[i];
double voldiff;
voldiff = 100*(Volume_from1[j]-Volume_from2[j])/(0.5*((Volume_from1[j]+Volume_from2[j])));
if(ctab == NULL) printf("label %d = %g\n",j, correct_ratio2[j]);
else printf("%4d %-30s %8.6lf %8.6lf %6d %6d %6d %9.4lf\n",
j,ctab->entries[j]->name,correct_ratio[j],correct_ratio2[j],
Volume_from1[j],Volume_from2[j],Volume_overlap[j],voldiff);
if(table_fname) fprintf(tablefp,"%4d %-30s %8.6lf %8.6lf %6d %6d %6d %9.4lf\n",
j,ctab->entries[j]->name,correct_ratio[j],correct_ratio2[j],
Volume_from1[j],Volume_from2[j],Volume_overlap[j],voldiff);
mean2 += correct_ratio2[labels_of_interest[i]];
std2 += correct_ratio2[labels_of_interest[i]] * correct_ratio2[labels_of_interest[i]];
}
mean2 /= (num_labels-skipped);
std2 /= (num_labels-skipped);
std2 = sqrt(std2 - mean2*mean2);
printf("mean +/- std = %6.4f +/- %6.4f \n", mean2, std2);
}
if(table_fname) fclose(tablefp);
if (log_fname != NULL)
{
log_fp = fopen(log_fname, "a+") ;
if (!log_fp)
ErrorExit(ERROR_BADFILE, "%s: could not open %s for writing",
Progname, log_fname) ;
if (all_labels_flag)
{
for (i=0; i < num_all_labels; i++)
{
fprintf(log_fp, "%6.4f ", correct_ratio2[all_labels_of_interest[i]]);
}
}
else
{
for (i=0; i < num_labels; i++)
{
if (do_cortex == 0 && IS_CORTEX(labels_of_interest[i]))
continue ;
if (do_wm == 0 && IS_WHITE_CLASS(labels_of_interest[i]))
continue ;
fprintf(log_fp, "%6.4f ", correct_ratio2[labels_of_interest[i]]);
}
}
fprintf(log_fp, "%6.4f ", mean2);
fprintf(log_fp, "%6.4f ", std2);
fprintf(log_fp, "%6.4f \n",
subcorvolume_overlap*2.0/(float)(subcorvolume1 + subcorvolume2));
fclose(log_fp);
}
if (mlog_fname != NULL)
{
log_fp = fopen(mlog_fname, "a+") ;
if (!log_fp)
ErrorExit(ERROR_BADFILE, "%s: could not open %s for writing",
Progname, mlog_fname) ;
fprintf(log_fp, "%6.4f \n", mean2);
fclose(log_fp);
}
if (slog_fname != NULL)
{
log_fp = fopen(slog_fname, "a+") ;
if (!log_fp)
ErrorExit(ERROR_BADFILE, "%s: could not open %s for writing",
Progname, slog_fname) ;
fprintf(log_fp, "%6.4f \n", std2);
fclose(log_fp);
}
if (olog_fname != NULL)
{
log_fp = fopen(olog_fname, "a+") ;
if (!log_fp)
ErrorExit(ERROR_BADFILE, "%s: could not open %s for writing",
Progname, olog_fname) ;
fprintf(log_fp, "%6.4f \n",
subcorvolume_overlap*2.0/(float)(subcorvolume1 + subcorvolume2));
fclose(log_fp);
}
printf("Overall subcortical dice = %6.4f \n",
subcorvolume_overlap*2.0/(float)(subcorvolume1 + subcorvolume2));
exit(0);
} /* end main() */
static MRI *
build_distance_by_intensity_histo(MRI *mri_norm,
MRI *mri_dist,
MRI *mri_aseg,
double dist_spacing,
double max_dist)
{
HISTOGRAM2D *h_dist_by_int ;
int x, y, z, b1, b2, label ;
float val, dist ;
double total, unlikely, pval ;
MRI *mri_pvals ;
h_dist_by_int = HISTO2Dalloc((int)ceil(max_dist/dist_spacing), 256) ;
HISTO2Dinit(h_dist_by_int,
h_dist_by_int->nbins1,
h_dist_by_int->nbins2,
0,
MAX_DIST,
0,
255) ;
for (x = 0 ; x < mri_dist->width ; x++)
for (y = 0 ; y < mri_dist->height ; y++)
for (z = 0 ; z < mri_dist->depth ; z++)
{
if (x == Gx && y == Gy && z == Gz)
{
DiagBreak() ;
}
dist = MRIgetVoxVal(mri_dist, x, y, z, 0) ;
if (dist < 0 || dist > MAX_DIST) // in interior or too far away
{
continue ;
}
label = MRIgetVoxVal(mri_aseg, x, y, z, 0) ;
if (IS_WHITE_CLASS(label) == 0 &&
IS_CORTEX(label) == 0 &&
label < MIN_CORTICAL_PARCELLATION)
{
continue ;
}
val = MRIgetVoxVal(mri_norm, x, y, z, 0) ;
HISTO2DaddSample(h_dist_by_int, dist, val, 0, max_dist, 0, 255) ;
}
// normalize the counts for each distance
for (b1 = 0 ; b1 < h_dist_by_int->nbins1 ; b1++)
{
for (total = 0.0, b2 = 0 ; b2 < h_dist_by_int->nbins2 ; b2++)
{
total += h_dist_by_int->counts[b1][b2] ;
}
if (total > 0)
{
unlikely = 1.0/(10*total) ;
for (b2 = 0 ; b2 < h_dist_by_int->nbins2 ; b2++)
{
h_dist_by_int->counts[b1][b2]/=total ;
if (DZERO(h_dist_by_int->counts[b1][b2]))
{
h_dist_by_int->counts[b1][b2] = unlikely ;
}
}
}
}
mri_pvals = MRIclone(mri_dist, NULL) ;
for (x = 0 ; x < mri_dist->width ; x++)
for (y = 0 ; y < mri_dist->height ; y++)
for (z = 0 ; z < mri_dist->depth ; z++)
{
if (x == Gx && y == Gy && z == Gz)
{
DiagBreak() ;
}
dist = MRIgetVoxVal(mri_dist, x, y, z, 0) ;
if (dist < 0 || dist > MAX_DIST) // in interior
{
continue ;
}
label = MRIgetVoxVal(mri_aseg, x, y, z, 0) ;
if (IS_WHITE_CLASS(label) == 0 &&
IS_CORTEX(label) == 0 &&
label < MIN_CORTICAL_PARCELLATION)
{
continue ;
}
val = MRIgetVoxVal(mri_norm, x, y, z, 0) ;
pval = HISTO2DgetCount(h_dist_by_int, dist, val) ;
if (pval > 0)
{
pval = -log10(pval) ;
}
else
{
pval = -10000 ;
}
MRIsetVoxVal(mri_pvals, x, y, z, 0, pval) ;
}
HISTO2Dfree(&h_dist_by_int) ;
return(mri_pvals) ;
}
