forked from tTh/FloatImg
better plotting
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parent
711e54fe43
commit
6228533479
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@ -18,7 +18,9 @@ float maxval;
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int x, y, idx;
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float rgb[3], moy;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( %p %p %d )\n", __func__, src, ghist, sz);
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#endif
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maxval = fimg_get_maxvalue(src);
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@ -46,7 +48,7 @@ return -66;
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}
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/* --------------------------------------------------------------------- */
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#define NSLICES 999
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#define NSLICES 1000
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int fimg_essai_histo(FloatImg *src, char *outpic, int k)
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{
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@ -60,14 +62,20 @@ memset(histo, 0, NSLICES*sizeof(long));
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foo = fimg_calcul_histo(src, histo, NSLICES);
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for (foo=0; foo<NSLICES; foo++) {
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printf("%7d %ld\n", foo, histo[foo]);
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}
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// for (foo=0; foo<NSLICES; foo++) {
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// printf("%7d %ld\n", foo, histo[foo]);
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// }
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pipe = popen("gnuplot", "w");
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fprintf(pipe, "set term png size 1000,400\n");
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fprintf(pipe, "set output \"histo.png\"\n");
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fprintf(pipe, "plot 'toto' with lines\n");
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fprintf(pipe, "set term png size 1024,512\n");
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fprintf(pipe, "set grid\n");
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fprintf(pipe, "set output \"%s\"\n", outpic);
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fprintf(pipe, "plot '/dev/stdin' with lines\n");
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for (foo=0; foo<NSLICES; foo++) {
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fprintf(pipe, "%d %ld\n", foo, histo[foo]);
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}
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fclose(pipe);
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