a new "rescale" option in cumulfimgs

This commit is contained in:
tTh 2022-09-17 19:18:45 +02:00
parent e6379f6338
commit feafd2799d
3 changed files with 51 additions and 14 deletions

View File

@ -20,7 +20,7 @@
* https://git.tetalab.org/tTh/FloatImg * https://git.tetalab.org/tTh/FloatImg
*/ */
#define FIMG_VERSION (198) #define FIMG_VERSION (201)
#define RELEASE_NAME ("noname") #define RELEASE_NAME ("noname")
/* XXX add a test for stdint.h / uint32_t XXX */ /* XXX add a test for stdint.h / uint32_t XXX */
@ -233,7 +233,7 @@ int fimg_qsort_rgb_b(FloatImg *psrc, FloatImg *pdst, int notused);
/* module funcs/equalize.c */ /* module funcs/equalize.c */
int fimg_equalize_compute(FloatImg *src, void *vptr, float vmax); int fimg_equalize_compute(FloatImg *src, void *vptr, float vmax);
int fimg_equalize(FloatImg *src, float vmax); int fimg_equalize(FloatImg *src, double vmax);
int fimg_mk_gray_from(FloatImg *src, FloatImg*dst, int k); int fimg_mk_gray_from(FloatImg *src, FloatImg*dst, int k);
int fimg_desaturate(FloatImg *src, FloatImg *dst, int notused); int fimg_desaturate(FloatImg *src, FloatImg *dst, int notused);
@ -285,6 +285,7 @@ int fimg_meanvalues(FloatImg *head, float means[4]);
int fimg_to_gray(FloatImg *head); int fimg_to_gray(FloatImg *head);
int fimg_add_cste(FloatImg *fi, float value); int fimg_add_cste(FloatImg *fi, float value);
int fimg_mul_cste(FloatImg *fi, float value); int fimg_mul_cste(FloatImg *fi, float value);
int fimg_div_cste(FloatImg *fi, float value);
int fimg_ajust_from_grab(FloatImg *fi, double maxima, int notused); int fimg_ajust_from_grab(FloatImg *fi, double maxima, int notused);
int fimg_absolute(FloatImg *fimg); int fimg_absolute(FloatImg *fimg);
void fimg_drand48(FloatImg *fi, float kmul); void fimg_drand48(FloatImg *fi, float kmul);

View File

@ -296,6 +296,33 @@ if (fi->type == FIMG_TYPE_GRAY) {
return 0; return 0;
} }
/* ---------------------------------------------------------------- */ /* ---------------------------------------------------------------- */
/* nouveau 17 septembre 2022 */
int fimg_div_cste(FloatImg *fi, float value)
{
int nbre, idx;
if ( (fi->type != FIMG_TYPE_RGB) && (fi->type != FIMG_TYPE_GRAY) ) {
fprintf(stderr, "%s : type %d invalide\n",
__func__, fi->type);
return -44;
}
nbre = fi->width * fi->height;
if (fi->type == FIMG_TYPE_RGB) {
for (idx=0; idx<nbre; idx++) {
fi->R[idx] /= value;
fi->G[idx] /= value;
fi->B[idx] /= value;
}
}
if (fi->type == FIMG_TYPE_GRAY) {
for (idx=0; idx<nbre; idx++) {
fi->R[idx] /= value;
}
}
return 0;
}
/* ---------------------------------------------------------------- */
/* /*
* oh, please explain the usecase of this function ! * oh, please explain the usecase of this function !
*/ */

View File

@ -40,9 +40,10 @@ void help(int v)
puts(""); puts("");
puts("$ cumulfimgs a.fimg b.fimg c-fimg ..."); puts("$ cumulfimgs a.fimg b.fimg c-fimg ...");
puts("cumulator options :"); puts("cumulator options :");
puts("\t-v\tincrease verbosity");
puts("\t-o\tname of output file");
puts("\t-g\tconvert to gray level"); puts("\t-g\tconvert to gray level");
puts("\t-o\tname of output file");
puts("\t-s\trescale end image");
puts("\t-v\tincrease verbosity");
puts(""); puts("");
if (verbosity) { puts("Xperiment"); fimg_print_version(v); } if (verbosity) { puts("Xperiment"); fimg_print_version(v); }
exit(0); exit(0);
@ -52,22 +53,25 @@ int main(int argc, char *argv[])
{ {
int foo, idx; int foo, idx;
int opt; int opt;
int compte = 0;
int compte = 0;
int to_gray = 0; int to_gray = 0;
int experiment = 0; int experiment = 0;
int rescale = 0;
int src_loaded = 0;
char *output_file = "out.fimg"; char *output_file = "out.fimg";
FloatImg accu, temp; FloatImg accu, temp;
int src_loaded = 0;
float vals[6]; float vals[6];
g_width = g_height = 0; g_width = g_height = 0;
while ((opt = getopt(argc, argv, "gho:vx")) != -1) { while ((opt = getopt(argc, argv, "gho:svx")) != -1) {
switch(opt) { switch(opt) {
case 'g': to_gray = 1; break; case 'g': to_gray = 1; break;
case 'h': help(1); break; case 'h': help(1); break;
case 'o': output_file = optarg; break; case 'o': output_file = optarg; break;
case 's': rescale = 1; break;
case 'v': verbosity++; break; case 'v': verbosity++; break;
case 'x': experiment++; break; case 'x': experiment++; break;
} }
@ -84,7 +88,7 @@ for (idx=optind; idx<argc; idx++) {
#endif #endif
foo = testfile(argv[idx]); foo = testfile(argv[idx]);
if (foo) { if (foo) {
fprintf(stderr, "testfile %s -> %d\n", argv[idx],foo); fprintf(stderr, "testfile %s -> %d\n", argv[idx], foo);
exit(1); exit(1);
} }
@ -104,6 +108,11 @@ for (idx=optind; idx<argc; idx++) {
compte++; compte++;
} }
if (rescale) {
fprintf(stderr, "cumulfimg: count = %d\n", compte);
fimg_div_cste(&accu, (float)compte);
}
/* XXX */ /* XXX */
if (experiment) { if (experiment) {