/** @brief Main SIFT routine
*
* takes as input 1) a list of keypoints coordinates and 2) an image.
*
*/
int main(int argc, char **argv)
{
if (argc !=3){
print_usage();
return -1;
}
/** Load image */
int w, h;
float* x = read_image_to_gray(argv[2], &w, &h);
/** Read keypoints locations from file */
int n;
struct sift_keypoint_std * k = sift_read_keyslocation_from_file(argv[1], &n);
/** Compute the SIFT descriptors */
sift_fill_descriptors(x, w, h, k, n);
/** Save into a file the keypoints with their orientations and their feature vectors */
fprintf_keypoint_std(stdout, k, n);
/* memory deallocation */
xfree(x);
xfree(k);
return 0;
}
void sift_write_to_file(const char *filename,
const struct sift_keypoint_std *k, int n, bool binary)
{
FILE* file = fopen(filename, "w");
if (binary)
raw_dump_keypoint_std(file, k, n);
else
fprintf_keypoint_std(file, k, n);
fclose(file);
}
void sift_write_to_file(const char *filename, const struct sift_keypoint_std *k, int n)
{
FILE* file = fopen(filename,"w");
fprintf_keypoint_std(file, k, n);
fclose(file);
}
