forked from tTh/FloatImg
117 lines
2.3 KiB
C
117 lines
2.3 KiB
C
/*
|
|
* programme de test pour
|
|
* les fonctions de base.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#include "../floatimg.h"
|
|
|
|
int verbosity;
|
|
|
|
/* ---------------------------------------------------------------- */
|
|
int petit_dessin(FloatImg *img)
|
|
{
|
|
int x, y;
|
|
float r, g, b;
|
|
|
|
for (y=0; y<img->height; y++) {
|
|
|
|
r = (float)y / (float)img->height;
|
|
|
|
for (x=0; x<img->width; x++) {
|
|
|
|
g = (float)x / (float)img->width;
|
|
b = 0.0;;
|
|
|
|
fimg_plot_rgb(img, x, y, r, g, b);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
/* ---------------------------------------------------------------- */
|
|
|
|
int essai_2gray(FloatImg *picz, char *outname)
|
|
{
|
|
int foo;
|
|
FloatImg gray;
|
|
|
|
fprintf(stderr, ">>> %s ( %p '%s' )\n", __func__, picz, outname);
|
|
|
|
foo = fimg_create(&gray, picz->width, picz->height, FIMG_TYPE_GRAY);
|
|
if (foo) {
|
|
fprintf(stderr, "%s : err %d on fimg create\n", __func__, foo);
|
|
exit(1);
|
|
}
|
|
foo = fimg_mk_gray_from(picz, &gray, 0);
|
|
if (foo) {
|
|
fprintf(stderr, "%s : err %d on fimg mk_gray_from\n", __func__, foo);
|
|
exit(1);
|
|
}
|
|
|
|
foo = fimg_save_as_pnm(&gray, outname, 0);
|
|
if (foo) {
|
|
fprintf(stderr, "%s : err %d on save_as_pnm\n", __func__, foo);
|
|
exit(1);
|
|
}
|
|
|
|
fimg_destroy(&gray);
|
|
|
|
return 0;
|
|
}
|
|
/* ---------------------------------------------------------------- */
|
|
/****
|
|
foo = fimg_create(&dessin, W, H, 3);
|
|
petit_dessin(&dessin);
|
|
foo = fimg_create(&noise, W, H, 3);
|
|
fimg_drand48(&noise, 0.1);
|
|
|
|
****/
|
|
/* ---------------------------------------------------------------- */
|
|
#define W 320
|
|
#define H 240
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int foo, idx;
|
|
float coef;
|
|
FloatImg dessin, noise, result;
|
|
char outname[100];
|
|
|
|
verbosity = 1;
|
|
|
|
fimg_print_version(1);
|
|
|
|
foo = fimg_create_from_png("/home/tth/TMP/floatimg/s2.png", &dessin);
|
|
foo = fimg_create_from_png("/home/tth/TMP/floatimg/s1.png", &noise);
|
|
|
|
foo = fimg_create(&result, W, H, 3);
|
|
|
|
#define NBRE 42
|
|
|
|
for (idx=0; idx<NBRE; idx++) {
|
|
|
|
coef = (float)idx / (float)NBRE;
|
|
coef = (0.5-0.5*cos( 3.141592654*coef));
|
|
|
|
|
|
|
|
foo = fimg_interpolate(&dessin, &noise, &result, coef);
|
|
printf("%6d %9.6f\n", idx, coef);
|
|
fimg_to_gray(&result);
|
|
sprintf(outname, "/home/tth/TMP/floatimg/%05d.pnm", idx);
|
|
foo = fimg_save_as_pnm(&result, outname, 0);
|
|
}
|
|
// essai_2gray(&result, "gray.pnm");
|
|
|
|
fimg_destroy(&dessin), fimg_destroy(&noise), fimg_destroy(&result);
|
|
|
|
return 0;
|
|
}
|