Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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106 lines
2.0 KiB
106 lines
2.0 KiB
/* |
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* another ugly experiment |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include "../floatimg.h" |
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#include "incrustator.h" |
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int verbosity; |
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/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */ |
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typedef struct { |
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int w, h; |
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int x, y; |
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int flags; |
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} Rectangle; |
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/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */ |
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int print_rectangle(Rectangle *rect) |
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{ |
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printf("rect @ %p : %dx%d at %d,%d\n", rect, rect->w, rect->h, |
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rect->x, rect->y); |
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return 0; |
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} |
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/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */ |
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int essai_extraction(FloatImg *in, FloatImg *out, Rectangle *rect) |
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{ |
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int foo; |
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int xs, ys, xd, yd; |
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int count; |
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float rgb[3]; |
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if (verbosity) { |
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fimg_describe(in, "source"); |
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fimg_describe(out, "destination"); |
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print_rectangle(rect); |
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} |
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count = 0; |
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for (yd=0; yd<rect->h; yd++) { |
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ys = yd + rect->y; |
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if ((ys<0) || (ys>=in->height)) continue; |
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for (xd=0; xd<rect->w; xd++) { |
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xs = xd + rect->x; |
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fimg_get_rgb(in, xs, ys, rgb); |
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fimg_put_rgb(out, xd, yd, rgb); |
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count++; |
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} |
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} |
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// fprintf(stderr, "%s: %d pix moved\n", __func__, count); |
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return 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; |
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FloatImg src, dst; |
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Rectangle zone; |
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char *infile = "foo.fimg"; |
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char *outfile = "out.fimg"; |
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verbosity = 0; |
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if (3 != argc) { |
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fprintf(stderr, "usage\n\t %s infile.fimg outfile.???\n", |
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argv[0]); |
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exit(1); |
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} |
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fimg_print_version(1); |
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infile = argv[1]; outfile = argv[2]; |
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foo = fimg_create_from_dump(infile, &src); |
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if (foo) { |
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fprintf(stderr, "%s: err %d loading image '%s'\n", __func__, |
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foo, infile); |
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exit(1); |
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} |
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zone.w = src.width / 2; zone.h = src.height / 2; |
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zone.x = src.width / 4 ; zone.y = src.height / 4; |
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foo = fimg_create(&dst, zone.w, zone.h, FIMG_TYPE_RGB); |
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foo = essai_extraction(&src, &dst, &zone); |
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if (foo) { |
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fprintf(stderr, "EXTRACTOR EPIC FAIL %d\n", foo); |
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exit(1); |
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} |
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foo = fimg_export_picture(&dst, outfile, 0); |
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return 0; |
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} |
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/* ---------------------------------------------- ~~~~~~~~~~~~~~~~ */
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