Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <math.h>
#include "../floatimg.h"
int verbosity;
/* ---------------------------------------------------------------- */
static int gray_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
{
return -1;
}
/* ---------------------------------------------------------------- */
int fimg_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
{
int picsize, idx;
if (FIMG_TYPE_RGB != s1->type) {
fprintf(stderr, "%s : bad src 1 type %d on %p\n", __func__,
s1->type, s1);
return -8;
}
if (FIMG_TYPE_RGB != s2->type) {
fprintf(stderr, "%s : bad src 2 type %d on %p\n", __func__,
s2->type, s2);
return -8;
}
if (FIMG_TYPE_RGB != d->type) {
fprintf(stderr, "%s : bad dst type %d on %p\n", __func__,
d->type, d);
return -9;
}
picsize = d->width * d->height * 3;
for (idx=0; idx<picsize; idx++) {
d->R[idx] = (coef * s1->R[idx]) + ((1.0-coef) * s2->R[idx]);
}
return 0;
}
/* ---------------------------------------------------------------- */