int main()
#endif
{
unsigned char *img1, *img2;
KLT_TrackingContext tc;
KLT_FeatureList fl;
int nFeatures = 100;
int ncols, nrows;
tc = KLTCreateTrackingContext();
fl = KLTCreateFeatureList(nFeatures);
img1 = pgmReadFile("img0.pgm", NULL, &ncols, &nrows);
img2 = pgmReadFile("img1.pgm", NULL, &ncols, &nrows);
KLTSelectGoodFeatures(tc, img1, ncols, nrows, fl);
KLTWriteFeatureListToPPM(fl, img1, ncols, nrows, "feat1.ppm");
KLTWriteFeatureList(fl, "feat1.txt", "%3d");
KLTTrackFeatures(tc, img1, img2, ncols, nrows, fl);
KLTReplaceLostFeatures(tc, img2, ncols, nrows, fl);
KLTWriteFeatureListToPPM(fl, img2, ncols, nrows, "feat2.ppm");
KLTWriteFeatureList(fl, "feat2.txt", "%3d");
return 0;
}
int main()
#endif
{
KLT_FeatureList fl;
KLT_FeatureHistory fh;
KLT_FeatureTable ft;
int i;
ft = KLTReadFeatureTable(NULL, "features.txt");
fl = KLTCreateFeatureList(ft->nFeatures);
KLTExtractFeatureList(fl, ft, 1);
KLTWriteFeatureList(fl, "feat1.txt", "%3d");
KLTReadFeatureList(fl, "feat1.txt");
KLTStoreFeatureList(fl, ft, 2);
KLTWriteFeatureTable(ft, "ft2.txt", "%3d");
fh = KLTCreateFeatureHistory(ft->nFrames);
KLTExtractFeatureHistory(fh, ft, 5);
printf("The feature history of feature number 5:\n\n");
for (i = 0 ; i < fh->nFrames ; i++)
printf("%d: (%5.1f,%5.1f) = %d\n",
i, fh->feature[i]->x, fh->feature[i]->y,
fh->feature[i]->val);
KLTStoreFeatureHistory(fh, ft, 8);
KLTWriteFeatureTable(ft, "ft3.txt", "%6.1f");
return 0;
}
void main()
{
unsigned char *img1, *img2;
KLT_TrackingContext tc;
KLT_FeatureList fl;
int nFeatures = 100;
int ncols, nrows;
int i;
tc = KLTCreateTrackingContext();
KLTPrintTrackingContext(tc);
fl = KLTCreateFeatureList(nFeatures);
img1 = pgmReadFile("img0.pgm", NULL, &ncols, &nrows);
img2 = pgmReadFile("img1.pgm", NULL, &ncols, &nrows);
KLTSelectGoodFeatures(tc, img1, ncols, nrows, fl);
printf("\nIn first image:\n");
for (i = 0 ; i < fl->nFeatures ; i++) {
printf("Feature #%d: (%f,%f) with value of %d\n",
i, fl->feature[i]->x, fl->feature[i]->y,
fl->feature[i]->val);
}
KLTWriteFeatureListToPPM(fl, img1, ncols, nrows, "feat1.ppm");
KLTWriteFeatureList(fl, "feat1.txt", "%3d");
KLTTrackFeatures(tc, img1, img2, ncols, nrows, fl);
printf("\nIn second image:\n");
for (i = 0 ; i < fl->nFeatures ; i++) {
printf("Feature #%d: (%f,%f) with value of %d\n",
i, fl->feature[i]->x, fl->feature[i]->y,
fl->feature[i]->val);
}
KLTWriteFeatureListToPPM(fl, img2, ncols, nrows, "feat2.ppm");
KLTWriteFeatureList(fl, "feat2.fl", NULL); /* binary file */
KLTWriteFeatureList(fl, "feat2.txt", "%5.1f"); /* text file */
}