int main(int c, char *v[])
{
char *filename_m = pick_option(&c, &v, "m", "");
bool old_boundary = pick_option(&c, &v, "o", NULL);
bool fan_boundary = pick_option(&c, &v, "f", NULL);
bool Fan_boundary = pick_option(&c, &v, "F", NULL);
global_parameter_p = atof(pick_option(&c, &v, "p", "NAN"));
if ((c != 1 && c != 2 && c != 3) || (c>1 && !strcmp(v[1], "-h"))) {
fprintf(stderr, "usage:\n\t%s [in [out]]\n", *v);
// 0 1 2
return 1;
}
char *filename_i = c > 1 ? v[1] : "-";
char *filename_o = c > 2 ? v[2] : "-";
if (old_boundary && !fan_boundary)
{
fprintf(stderr, "using old boundary\n");
global_boundary_function = construct_symmetric_boundary_old;
}
if (fan_boundary)
{
fprintf(stderr, "using fancy boundary\n");
global_boundary_function = construct_symmetric_boundary_fancy;
}
if (Fan_boundary)
{
fprintf(stderr, "using Fancy boundary\n");
global_boundary_function = construct_symmetric_boundary_Fancy;
}
if (isfinite(global_parameter_p))
{
fprintf(stderr, "using fancier boundary (p=%g)\n",
global_parameter_p);
global_boundary_function = construct_symmetric_boundary_fancier;
}
int w, h, pd;
float *x = iio_read_image_float_split(filename_i, &w, &h, &pd);
float *y = malloc(w*h*pd*sizeof*y);
ppsmooth_split(y, x, w, h, pd);
iio_save_image_float_split(filename_o, y, w, h, pd);
if (*filename_m) {
for (int i = 0; i < w*h*pd; i++)
y[i] = x[i] - y[i];
iio_save_image_float_split(filename_m, y, w, h, pd);
}
return 0;
}
int main(int argc, char **argv)
{
if (argc < 3) {
fprintf(stderr, " %s img out area [intensity_threshold (default INF)]\n", argv[0]);
fprintf(stderr, " remove connected compotents of img smaller than area\n"
" if intensity difference between two neighboring pixels of img\n"
" is larger than the threshold then the pixels are considered disjoint\n");
return 1;
}
char *img_file = argv[1];
char *out_file = argv[2];
int area = atoi(argv[3]);
float intensity_threshold = argc > 4 ? atof(argv[4]): INFINITY;
int w,h,nch;
float *img = iio_read_image_float_split(img_file, &w, &h, &nch);
float *out = calloc(w*h*nch, sizeof(*out));
int n_cc = remove_small_cc(w, h, img, out, area, intensity_threshold);
fprintf(stderr, "remaining components %d\n", n_cc);
/* write the results */
iio_save_image_float_split(out_file, out,w,h,nch);
free(img);
free(out);
}
int main(int c, char *v[])
{
bool do_invert = pick_option(&c, &v, "i", NULL);
int order = atoi(pick_option(&c, &v, "o", "-3"));
if (c < 4 || c > 6)
return fprintf(stderr, "usage:\n\t"
"%s [-i] [-o {0|1|2|-3|3|5|7}] hom w h [in [out]]\n"
//0 1 2 3 4 5
"\t-i\tinvert input homography\n"
"\t-o\tchose interpolation order (default -3 = bicubic)\n"
, *v);
double H_direct[9], H_inv[9];
read_n_doubles_from_string(H_direct, v[1], 9);
invert_homography(H_inv, H_direct);
double *H = do_invert ? H_inv : H_direct;
int ow = atoi(v[2]);
int oh = atoi(v[3]);
char *filename_in = c > 4 ? v[4] : "-";
char *filename_out = c > 5 ? v[5] : "-";
int w, h, pd;
float *x = iio_read_image_float_split(filename_in, &w, &h, &pd);
float *y = xmalloc(ow * oh * pd * sizeof*y);
int r = 0;
for (int i = 0; i < pd; i++)
r += shomwarp(y + i*ow*oh, ow, oh, H, x + i*w*h, w, h, order);
iio_save_image_float_split(filename_out, y, ow, oh, pd);
return r;
}
// read an image in any format from STDIN and write a ppm to STDOUT
int main(int c, char *v[])
{
int w, h, pixeldim;
float *x = iio_read_image_float_vec("-", &w, &h, &pixeldim);
fprintf(stderr, "got a %dx%d image with %d channels\n", w, h, pixeldim);
iio_save_image_float_split("-", x, w, h, pixeldim);
free(x);
return 0;
}
int main (int argc, char **argv)
{
/* ppatameter parsing - parameters*/
if(argc<5)
{
fprintf (stderr, "too few parameters\n");
fprintf (stderr, "apply a 'morphologic' operation over the square structuring element of size sz\n");
fprintf (stderr, " usage: %s input {min,max,median,average,random,rank} sz out [ struc_elem ]\n",argv[0]);
return 1;
}
// input
int nc,nr,nch;
float *in = iio_read_image_float_split(argv[1], &nc, &nr, &nch);
// operation
char *operation = argv[2];
// construct structuring element
int se_nr, se_nc;
se_nr = se_nc = atoi(argv[3]);
float sse[se_nr*se_nc]; // static memory
float *se = sse;
int i;
for (i=0;i<se_nr*se_nc;i++) se[i] = 1;
int ctr_c = se_nc /2; // the center
int ctr_r = se_nr /2;
// if a structuring element is passed use it insted of the one constructed
if (argc >5) {
se = iio_read_image_float(argv[5], &se_nc, &se_nr);
ctr_c = se_nc /2; // the center
ctr_r = se_nr /2;
}
// allocate output
float *out = malloc(nc*nr*nch*sizeof*out);
// call the algorithm
for (int i=0;i<nch;i++)
morphoop(in + nc*nr*i,nc,nr, se, se_nc, se_nr, ctr_c, ctr_r, operation, out + nc*nr*i);
iio_save_image_float_split(argv[4], out, nc, nr, nch);
free(in);
free(out);
return 0;
}
int main(int argc, char *argv[])
{
if (argc != 9 && argc != 8) {
fprintf(stderr, "usage:\n\t"
"%s a b method \"params\" step nscales lastscale [f]\n", *argv);
// 0 1 2 3 4 5 6 7 8
return EXIT_FAILURE;
}
char *filename_a = argv[1];
char *filename_b = argv[2];
char *method_id = argv[3];
char *parstring = argv[4];
float scale_step = atof(argv[5]);
int nscales = atoi(argv[6]);
int last_scale = atoi(argv[7]);
char *filename_f = argc > 8 ? argv[8] : "-";
float params[0x100];
int nparams = parse_floats(params, 0x100, parstring);
int w, h, ww, hh;
float *a = iio_read_image_float(filename_a, &w, &h);
float *b = iio_read_image_float(filename_b, &ww, &hh);
if (w != ww || h != hh) fail("input image size mismatch");
float *u = xmalloc(2 * w * h * sizeof(float));
float *v = u + w * h;
// bound the number of scales to disallow images smaller than 16 pixels
float Nscales = 1.5+log(BAD_MIN(w,h)/3.0)/log(fabs(scale_step));
if (Nscales < nscales)
nscales = Nscales;
multi_scale_optical_flow(method_id, params, nparams,
u, v, a, b, w, h, nscales, scale_step, last_scale);
iio_save_image_float_split(filename_f, u, w, h, 2);
xfree(u);
xfree(a);
xfree(b);
return EXIT_SUCCESS;
}
int main(int c, char *v[])
{
if (c != 1 && c != 2 && c != 3) {
fprintf(stderr, "usage:\n\t%s [in [out]]\n", *v);
// 0 1 2
return 1;
}
char *in = c > 1 ? v[1] : "-";
char *out = c > 2 ? v[2] : "-";
int w, h, pd;
float *x = iio_read_image_float_split(in, &w, &h, &pd);
float *y = xmalloc(w*h*pd*sizeof*y);
for (int i = 0; i < pd; i++)
periodic_component(y + w*h*i, x + w*h*i, w, h);
iio_save_image_float_split(out, y, w, h, pd);
free(x);
free(y);
return 0;
}
int main(int c, char *v[])
{
if (c < 4 || c > 6)
return fprintf(stderr, "usage:\n\t"
"%s [-i {0|1|2|3}] hom w h [in [out]]\n", *v);
// 0 1 2 3 4 5
double H[9];
read_n_doubles_from_string(H, v[1], 9);
int ow = atoi(v[2]);
int oh = atoi(v[3]);
char *filename_in = c > 4 ? v[4] : "-";
char *filename_out = c > 5 ? v[5] : "-";
int w, h, pd;
float *x = iio_read_image_float_split(filename_in, &w, &h, &pd);
float *y = xmalloc(ow * oh * pd * sizeof*y);
for (int i = 0; i < pd; i++)
homwarp(y + i*ow*oh, ow, oh, H, x + i*w*h, w, h);
iio_save_image_float_split(filename_out, y, ow, oh, pd);
return 0;
}
int main(int c, char *v[])
{
if (c != 2 && c != 3 && c != 4) {
fprintf(stderr, "usage:\n\t%s variances [in [out]]\n", *v);
// 0 1 2 3
return 1;
}
char *filename_sigma = v[1];
char *filename_in = c > 2 ? v[2] : "-";
char *filename_out = c > 3 ? v[3] : "-";
int w, h, ww, hh, pd;
float *sigma = iio_read_image_float(filename_sigma, &w, &h);
float *x = iio_read_image_float_split(filename_in, &ww, &hh, &pd);
if (w != ww || h != hh) fail("variances and image size mismatch");
float *y = xmalloc(w*h*pd*sizeof*y);
local_gaussian_blur(y, sigma, x, w, h, pd);
iio_save_image_float_split(filename_out, y, w, h, pd);
free(x); free(y); free(sigma);
return 0;
}
int main(int c, char *v[])
{
// process input arguments
_Bool m = pick_option(&c, &v, "m", NULL);
if (c < 2 || c > 4) {
fprintf(stderr, "usage:\n\t%s alpha [dem_in [dem_out]]\n", *v);
// 0 1 2 3
return 1;
}
float alpha = atof(v[1]);
char *filename_in = c > 2 ? v[2] : "-";
char *filename_out = c > 3 ? v[3] : "-";
// read input image
int w, h, pd;
float *x = iio_read_image_float_split(filename_in, &w, &h, &pd);
if (pd != 1) {
for (int i = 0; i < w*h; i++)
for (int l = 1; l < pd; l++)
x[i] += x[i+w*h*l];
for (int i = 0; i < w*h; i++)
x[i] /= pd;
}
// cast the vertical shadows
cast_vertical_shadows(x, w, h, alpha);
// if mask is requested, create a binary mask
if (m) for (int i = 0; i < w*h; i++)
x[i] = 255*isnan(x[i]);
// save the output image
iio_save_image_float_split(filename_out, x, w, h, 1);
// cleanup (unnecessary) and exit
return 0;
}