Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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118 lines
2.5 KiB
118 lines
2.5 KiB
/*
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* FIMGSTATS
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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; /* global */
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int make_csv;
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/* --------------------------------------------------------------------- */
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int various_numbers(FloatImg *fimg, int k)
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{
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float moyennes[4];
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int foo;
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// float fvalue;
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float vals[6];
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if (verbosity) {
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fprintf(stderr, " numbers from %p :\n", fimg);
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}
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fimg_printhead(fimg);
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fprintf(stderr, "surface %d\n", fimg->width * fimg->height);
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fimg_meanvalues(fimg, moyennes);
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fprintf(stderr, "mean values:\n");
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for (foo=0; foo<4; foo++)
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printf(" %c %14.6f\n", "RGBA"[foo], moyennes[foo]);
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foo = fimg_count_negativ(fimg);
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if (foo) {
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fprintf(stderr, "%d negative values\n", foo);
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}
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foo = fimg_get_minmax_rgb(fimg, vals);
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if (foo) {
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fprintf(stderr, "%s: err %d on fimg_get_minmax_rgb\n",
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__func__, foo);
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return foo;
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}
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printf("Rmin %12.4g Rmax %12.4g delta %12g\n",
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vals[0], vals[1], vals[1]-vals[0]);
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printf("Gmin %12.4g Gmax %12.4g %12g\n",
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vals[2], vals[3], vals[3]-vals[2]);
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printf("Bmin %12.4g Bmax %12.4g %12g\n",
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vals[4], vals[5], vals[5]-vals[4]);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int various_numbers_from_file(char *fname, int k)
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{
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FloatImg fimg;
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int foo;
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fprintf(stderr, "------ numbers from '%s' :\n", fname);
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foo = fimg_create_from_dump(fname, &fimg);
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if (foo) {
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fprintf(stderr, "create fimg from '%s' -> %d\n", fname, foo);
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return -2;
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}
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various_numbers(&fimg, k);
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fimg_destroy(&fimg);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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static void help(int k)
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{
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fputs( "usage : fimgstats [options] file.fimg\n"
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"\t-c\tmake a machinable csv\n"
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"\t-v\tincrease verbosity\n"
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, stderr);
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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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extern char *optarg;
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extern int optind, opterr, optopt;
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if (argc == 1) {
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foo = fimg_print_version(1); help(0);
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exit(0);
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}
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while ((opt = getopt(argc, argv, "chv")) != -1) {
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switch(opt) {
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case 'c': make_csv++; break;
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case 'v': verbosity++; break;
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case 'h': /* tombe dedans */
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default: help(1); exit(1);
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}
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}
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if (NULL==argv[optind]) {
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fprintf(stderr, "optind %d is wtf\n", optind);
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return 1;
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}
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foo = various_numbers_from_file(argv[optind], 0);
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if (foo) {
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fprintf(stderr, "got a %d ?\n", foo);
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}
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return 0;
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}
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/* --------------------------------------------------------------------- */
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