Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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95 lines
1.8 KiB
95 lines
1.8 KiB
/* |
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* halfsizing an fimg picture. |
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*/ |
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#include <stdio.h> |
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#include <unistd.h> /* pour getopt */ |
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#include <stdlib.h> |
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#include <string.h> |
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#include "../floatimg.h" |
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int verbosity; |
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/* ------------------------------------------------------------- */ |
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int faire_un_halfsize(char *iname, char *oname, int to_gray) |
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{ |
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FloatImg src, dst; |
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int foo; |
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foo = fimg_create_from_dump(iname, &src); |
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if (foo) { |
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fprintf(stderr, "create fimg from '%s' -> %d\n", iname, foo); |
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return -1; |
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} |
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memset(&dst, 0, sizeof(FloatImg)); |
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foo = fimg_halfsize_1(&src, &dst, 0); |
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if (foo) { |
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fprintf(stderr, "halfize 1 fail -> %d\n", foo); |
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return -1; |
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} |
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if (to_gray) { |
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foo = fimg_to_gray(&dst); |
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/* and ? */ |
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} |
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foo = fimg_dump_to_file(&dst, oname, 0); |
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if (foo) { |
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fprintf(stderr, "save to '%s' -> %d\n", oname, foo); |
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return -1; |
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} |
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return 0; |
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} |
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/* ------------------------------------------------------------- */ |
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void help(int u) |
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{ |
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puts("Usage:\n\tfimghalfsize [options] in.fimg out.fimg"); |
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puts("Options:"); |
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puts("\t-g\tconvert output to gray"); |
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exit(0); |
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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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char *srcname = ""; |
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char *dstname = "out.fimg"; |
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int grayed = 0; |
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while ((opt = getopt(argc, argv, "ghv")) != -1) { |
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switch(opt) { |
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case 'g': grayed = 1; break; |
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case 'h': help(0); break; |
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case 'v': verbosity++; break; |
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} |
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} |
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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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srcname = argv[optind]; |
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dstname = argv[optind+1]; |
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if (verbosity) { |
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fprintf(stderr, "%s: src: %s dst: %s\n", argv[0], |
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srcname, dstname); |
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} |
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foo = faire_un_halfsize(srcname, dstname, grayed); |
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if (foo) { |
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fprintf(stderr, "in %s: make halfsize give a %d\n", argv[0], foo); |
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exit(1); |
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} |
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return 0; |
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} |
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/* ------------------------------------------------------------- */
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