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