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added binarize function

This commit is contained in:
Tonton Th 2020-11-05 12:48:35 +01:00
parent 3cb969866f
commit 5b0670006a
2 changed files with 34 additions and 1 deletions
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2
Fonderie/fonctions.h
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@ -40,6 +40,8 @@ int create_fifo(int nbslot, int w, int h, int t);
* funcs in 'sfx.c'
*/
int binarize(FloatImg *pimg, int notused);
int brotche_rand48_a(FloatImg *fimg, float ratio, float mval);
int brotche_rand48_b(FloatImg *fimg, float ratio, float mval);
int colors_brotcher(FloatImg *fimg, float fval);

33
Fonderie/sfx.c
View File

@ -13,12 +13,43 @@
#include "fonctions.h"
/* -------------------------------------------------------------- */
/* global vars from main
/* here are global vars exported by the main module
*/
extern int verbosity;
/* -------------------------------------------------------------- */
int binarize(FloatImg *pimg, int notused)
{
float mm[6], mR, mG, mB;
int foo, x, y;
float rgb[3];
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %d )\n", __func__, pimg, notused);
#endif
foo = fimg_get_minmax_rgb(pimg, mm);
mR = (mm[1] - mm[0]) / 2.0;
mG = (mm[3] - mm[2]) / 2.0;
mB = (mm[5] - mm[4]) / 2.0;
if (verbosity > 1)
fprintf(stderr, "%s: %f %f %f\n", __func__, mR, mG, mB);
for (y=0; y<pimg->height; y++) {
for (x=0; x<pimg->width; x++) {
fimg_get_rgb(pimg, x, y, rgb);
if (rgb[0] < mR) rgb[0] = mm[0];
else rgb[0] = mm[1];
if (rgb[1] < mG) rgb[1] = mm[2];
else rgb[1] = mm[3];
if (rgb[2] < mB) rgb[2] = mm[4];
else rgb[2] = mm[5];
}
}
return 0;
}
/* -------------------------------------------------------------- */
int brotche_rand48_a(FloatImg *fimg, float ratio, float mval)
{