forked from tTh/FloatImg
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
|
/*
|
||
|
|
* P I X E L I Z E
|
||
|
|
*/
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "../floatimg.h"
|
||
|
|
|
||
|
|
extern int verbosity;
|
||
|
|
|
||
|
|
/* -------------------------------------------------------------- */
|
||
|
|
int fimg_pixelize_h_0(FloatImg *psrc, FloatImg *pdst, int k)
|
||
|
|
{
|
||
|
|
int line, col, loop, idx;
|
||
|
|
float cr, cg, cb; /* cumuls */
|
||
|
|
|
||
|
|
fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, psrc, pdst, k);
|
||
|
|
|
||
|
|
if (fimg_images_not_compatible(psrc, pdst)) {
|
||
|
|
fprintf(stderr, "%s: err compatibility\n", __func__);
|
||
|
|
return -8;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (line=0; line<psrc->height; line++) {
|
||
|
|
for (col=0; col<psrc->width; col+=8) {
|
||
|
|
cr = cg = cb = 0.0;
|
||
|
|
idx = line * psrc->width + col;
|
||
|
|
for (loop=0; loop<8; loop++) {
|
||
|
|
cr += psrc->R[idx+loop];
|
||
|
|
cg += psrc->G[idx+loop];
|
||
|
|
cb += psrc->B[idx+loop];
|
||
|
|
}
|
||
|
|
for (loop=0; loop<8; loop++) {
|
||
|
|
pdst->R[idx+loop] = cr / 8.0;
|
||
|
|
pdst->G[idx+loop] = cg / 8.0;
|
||
|
|
pdst->B[idx+loop] = cb / 8.0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
/* -------------------------------------------------------------- */
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* -------------------------------------------------------------- */
|