Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* converting a floatimg to a PNG
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include "../floatimg.h"
int verbosity;
/* ----------------------------------------------------------------- */
int convertir_fimg_en_PNG(char *srcname, char *dstname, int grisaille)
{
int foo, infos[3];
FloatImg fimg;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %25s ( '%s' '%s' %d )\n", __func__,
srcname, dstname, notused);
#endif
foo = fimg_fileinfos(srcname, infos);
if (foo) {
if (verbosity) fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo);
return foo;
}
if (verbosity) {
fprintf(stderr, "%s: image '%s' is %dx%d %s\n",
__func__,
srcname, infos[0], infos[1],
fimg_str_type(infos[2]));
}
foo = fimg_create_from_dump(srcname, &fimg);
if (foo) {
fprintf(stderr, "create fimg from '%s' -> %d\n", srcname, foo);
return -1;
}
if (grisaille) {
foo = fimg_desaturate(&fimg, &fimg, 0);
}
foo = fimg_save_as_png(&fimg, dstname, 0);
if (foo) {
fprintf(stderr, "%s: saving as png '%s' -> %d\n", __func__,
dstname, foo);
return -1;
}
fimg_destroy(&fimg);
return 0;
}
/* ----------------------------------------------------------------- */
void help(int k)
{
puts("usage:\n\tfimg2png [options] foo.fimg bar.png");
puts("options:");
puts("\t-g\tconvert to gray");
puts("\t-v\tincrease verbosity");
if (verbosity) fimg_print_version(1);
exit(0);
}
/* ----------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo, opt;
int to_gray = 0;
while ((opt = getopt(argc, argv, "ghv")) != -1) {
switch(opt) {
case 'g': to_gray = 1; break;
case 'v': verbosity++; break;
case 'h': help(1); exit(1);
}
}
if (2 != argc-optind) {
fprintf(stderr, "error: %s need two filenames\n", argv[0]);
exit(1);
}
foo = convertir_fimg_en_PNG(argv[optind], argv[optind+1], to_gray);
if (foo) {
fprintf(stderr, "%s : got a %d from convertor\n", argv[0], foo);
}
return 0;
}
/* ----------------------------------------------------------------- */