Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

127 lines
2.8 KiB

/*
* conversion vers le format PNM
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include "../floatimg.h"
int verbosity;
/* --------------------------------------------------------------------- */
int convertir_fimg_en_pnm(char *srcname, char *dstname, int to_gray)
{
int foo, infos[3];
FloatImg fimg, gris, *outptr;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %25s ( '%s' '%s' %d )\n", __func__,
srcname, dstname, to_gray);
#endif
foo = fimg_fileinfos(srcname, infos);
if (foo) { fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo); }
if (verbosity) {
fprintf(stderr, "image '%s' is %d x %d %s\n",
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;
}
outptr = &fimg; /* safe default value */
if (to_gray) {
if (verbosity) puts("converting to gray...");
foo = fimg_create(&gris, fimg.width, fimg.height, FIMG_TYPE_GRAY);
if (foo) {
fprintf(stderr, "err create gray %d\n", foo);
return -2;
}
foo = fimg_mk_gray_from(&fimg, &gris, 0);
if (foo) {
fprintf(stderr, "err mk gray %d\n", foo);
return -4;
}
outptr = &gris;
}
#if DEBUG_LEVEL > 1
print_floatimg(outptr, "created fimg");
#endif
foo = fimg_save_as_pnm(outptr, dstname, 0);
if(foo) { fprintf(stderr, "%p to '%s' -> %d\n", &fimg, dstname, foo); }
if (to_gray) {
fimg_destroy(&gris);
outptr = NULL;
/* please run valgrind every hour */
}
return 0;
}
/* --------------------------------------------------------------------- */
static void help(int flag)
{
if (flag) {
fprintf(stderr, "conversion FIMG -> PNM 16 bits\n");
fimg_print_version(1);
}
puts("usage :");
puts("\tfimg2pnm [flags] infile.fimg outfile.pnm");
puts("flags :");
puts("\t-g\tconvert to gray");
puts("\t-v\tenhance your verbosity");
}
/* --------------------------------------------------------------------- */
int main(int argc, char *argv[])
{
int foo, opt;
int to_gray = 0;
if (argc == 1) {
help(0);
exit(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 DEBUG_LEVEL
/* mmmm, is it the good way ? */
printf("argc %d -> %d\n", argc, argc-optind);
for (foo=optind; foo<argc; foo++) {
printf(" %d %s\n", foo, argv[foo]);
}
#endif
if (2 != argc-optind) {
fprintf(stderr, "error: %s need two filenames\n", argv[0]);
exit(1);
}
if ( 0 != access(argv[optind], R_OK) ) { /* fimg is NOT readable */
fprintf(stderr, "%s: %s don't exist.\n", argv[0], argv[optind]);
exit(2);
}
foo = convertir_fimg_en_pnm(argv[optind], argv[optind+1], to_gray);
if (foo) fprintf(stderr, "conversion -> %d\n", foo);
return 0;
}
/* --------------------------------------------------------------------- */