FloatImg4PythonBinding/lib/t.c

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/*
* programme de test pour
* les fonctions de base.
*/
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include "../floatimg.h"
int verbosity;
/* ---------------------------------------------------------------- */
int essai_normalize(void)
{
FloatImg A;
float val;
int foo;
foo = fimg_create(&A, 512, 512, FIMG_TYPE_RGB);
if (foo) {
fprintf(stderr, "%s err create A %d\n", __func__, foo);
return foo;
}
fimg_drand48(&A, 255.0);
val = fimg_get_maxvalue(&A);
fprintf(stderr, "BEFORE max pixel %f\n", val);
A.fval = 255.0; A.count = 1;
foo = fimg_normalize(&A, 1.0, 0);
if (foo) {
fprintf(stderr, "%s err normalize A %d\n", __func__, foo);
return foo;
}
val = fimg_get_maxvalue(&A);
fprintf(stderr, "AFTER max pixel %f\n", val);
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fimg_destroy(&A);
return 0;
}
/* ---------------------------------------------------------------- */
#define WI 1024
#define HI 768
#define KDEG 3.141592654 /* secret magic number */
int essai_interpolate(int k)
{
FloatImg A, B, C;
int foo;
foo = fimg_create(&A, WI, HI, FIMG_TYPE_RGB);
if (foo) {
fprintf(stderr, "%s err create A %d\n", __func__, foo);
return foo;
}
fimg_hdeg_a(&A, KDEG);
foo = fimg_create(&B, WI, HI, FIMG_TYPE_RGB);
if (foo) {
fprintf(stderr, "%s err create B %d\n", __func__, foo);
return foo;
}
fimg_vdeg_a(&B, KDEG);
foo = fimg_create(&C, WI, HI, FIMG_TYPE_RGB);
if (foo) {
fprintf(stderr, "%s err create C %d\n", __func__, foo);
return foo;
}
foo = fimg_interpolate(&A, &B, &C, 0.5);
if (foo) {
fprintf(stderr, "%s err interpolate %d\n", __func__, foo);
return foo;
}
foo = fimg_save_as_pnm(&C, "interpolate.pnm", 0);
fimg_destroy(&A); fimg_destroy(&B); fimg_destroy(&C);
return 0;
}
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/* ---------------------------------------------------------------- */
int essai_2gray(FloatImg *picz, char *outname)
{
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int foo;
FloatImg gray;
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fprintf(stderr, ">>> %s ( %p '%s' )\n", __func__, picz, outname);
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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);
}
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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);
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return 0;
}
/* ---------------------------------------------------------------- */
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#define TAILLE 1024
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int essai_clone_et_copy(int unused)
{
FloatImg A, B, C;
int foo;
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foo = fimg_create(&A, TAILLE, TAILLE, FIMG_TYPE_RGB);
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if (foo) {
fprintf(stderr, "%s err create A %d\n", __func__, foo);
return foo;
}
foo = fimg_draw_something(&A);
if (foo) {
fprintf(stderr, "%s err drawing A %d\n", __func__, foo);
return foo;
}
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foo = fimg_save_as_pnm(&A, "A.pnm", 0);
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if (foo) {
fprintf(stderr, "%s : err %d on save_as_pnm\n", __func__, foo);
exit(1);
}
foo = fimg_clone(&A, &B, 1);
if (foo) {
fprintf(stderr, "%s err clone B %d\n", __func__, foo);
return foo;
}
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foo = fimg_create(&C, TAILLE, TAILLE, FIMG_TYPE_RGB);
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if (foo) {
fprintf(stderr, "%s err create A %d\n", __func__, foo);
return foo;
}
foo = fimg_copy_data(&A, &C);
if (foo) {
fprintf(stderr, "%s err copydata %d\n", __func__, foo);
return foo;
}
foo = fimg_save_as_pnm(&C, "C.pnm", 0);
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fimg_destroy(&A); fimg_destroy(&B); fimg_destroy(&C);
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return 0;
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}
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#undef TAILLE
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/* ---------------------------------------------------------------- */
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int essai_contraste(char *fname)
{
int foo;
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FloatImg dessin, copy;
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double maxi;
foo = fimg_create_from_dump(fname, &dessin);
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if (foo) {
fprintf(stderr, "in %s, error %d loading '%s'\n",
__func__, foo, fname);
return foo;
}
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foo = fimg_clone(&dessin, &copy, 0);
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maxi = (double)fimg_get_maxvalue(&dessin);
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fprintf(stderr, "image source valeur maxi = %f\n", maxi);
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fimg_power_2(&dessin, &copy, maxi);
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maxi = (double)fimg_get_maxvalue(&copy);
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fprintf(stderr, "apres power_2 valeur maxi = %f\n", maxi);
fimg_save_as_pnm(&copy, "power2.pnm", 0);
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fimg_square_root(&dessin, &copy, maxi);
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maxi = (double)fimg_get_maxvalue(&copy);
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fprintf(stderr, "apres square_root valeur maxi = %f\n", maxi);
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fimg_save_as_pnm(&copy, "squareroot.pnm", 0);
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fimg_cos_01(&dessin, &copy, maxi);
maxi = (double)fimg_get_maxvalue(&copy);
fprintf(stderr, "apres cos 01 valeur maxi = %f\n", maxi);
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fimg_save_as_pnm(&copy, "cos_01.pnm", 0);
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fimg_cos_010(&dessin, &copy, maxi);
maxi = (double)fimg_get_maxvalue(&copy);
fprintf(stderr, "apres cos 010 valeur maxi = %f\n", maxi);
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fimg_save_as_pnm(&copy, "cos_010.pnm", 0);
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fimg_destroy(&dessin); fimg_destroy(&copy);
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return 0;
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}
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/* ---------------------------------------------------------------- */
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int main(int argc, char *argv[])
{
int foo, opt;
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// char outname[100];
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int gray = 0;
while ((opt = getopt(argc, argv, "gn:v")) != -1) {
switch(opt) {
case 'g': gray++; break;
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case 'n': foo=atoi(optarg); break;
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case 'v': verbosity++; break;
}
}
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if (verbosity) fimg_print_version(0);
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foo = essai_normalize();
fprintf(stderr, "retour essai normalize -> %d\n", foo);
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foo = essai_contraste("quux.fimg");
fprintf(stderr, "retour essai contraste -> %d\n", foo);
foo = essai_clone_et_copy(0);
fprintf(stderr, "retour essai clone'n'copy -> %d\n", foo);
foo = essai_interpolate(0);
fprintf(stderr, "retour essai interpolate -> %d\n", foo);
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return 0;
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}