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