Bibliothèque de traitements d'images en virgule flottante.
http://la.buvette.org/photos/cumul/
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355 lines
7.7 KiB
355 lines
7.7 KiB
/*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pam.h>
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#include "../floatimg.h"
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int verbosity;
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float global_fvalue;
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/* --------------------------------------------------------------------- */
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int essai_rotate(char *infile)
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{
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FloatImg src, dst;
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int foo;
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if (NULL != infile) {
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fprintf(stderr, "%s: loading %s\n", __func__, infile);
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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 load '%s'\n", __func__, infile);
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return foo;
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}
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}
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else {
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fprintf(stderr, "%s : NOT INPUT FILE, FUBAR\n", __func__);
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abort();
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}
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fimg_save_as_png(&src, "test.png", 0);
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foo = fimg_rotate_90(&src, &dst, 0);
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fprintf(stderr, "rotate 90 -> %d\n", foo);
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foo = fimg_save_as_png(&dst, "rotated90.png", 0);
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foo = fimg_save_as_pnm(&dst, "rotated90.pnm", 0);
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fimg_destroy(&src);
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return -1;
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}
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/* --------------------------------------------------------------------- */
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int essai_filtrage_3x3(char *infile)
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{
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FloatImg src, dst;
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int foo; /// , idx;
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// char buffer[100];
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FimgFilter3x3 filter_a = {
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{ 1.0, 1.0, 1.0,
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1.0, -3.0, 1.0,
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1.0, 1.0, 1.0 },
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8.0, 0.0
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};
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FimgFilter3x3 filter_b = {
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{ -2.0, -1.0, 0.0,
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-1.0, 3.0, 1.0,
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0.0, 1.0, 2.0 },
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8.0, 0.0
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};
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if (NULL != infile) {
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fprintf(stderr, "%s: loading %s\n", __func__, infile);
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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 load '%s'\n", __func__, infile);
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return foo;
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}
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}
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else {
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fprintf(stderr, "%s is creating the picz\n", __func__);
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fimg_create(&src, 640, 480, FIMG_TYPE_RGB);
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fimg_test_pattern(&src, 0, 255.0);
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}
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fimg_save_as_png(&src, "test.png", 0);
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foo = fimg_clone(&src, &dst, 0);
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if (foo) {
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fprintf(stderr, "%s: err clone %p\n", __func__, &src);
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return -44;
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}
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fimg_filter_3x3(&src, &dst, &filter_a);
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foo = fimg_clamp_negativ(&dst);
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if (foo) {
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fprintf(stderr, "clamped %d negative pixels\n", foo);
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}
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foo = fimg_save_as_png(&dst, "f3x3a.png", 0);
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// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0);
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fimg_filter_3x3(&src, &dst, &filter_b);
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foo = fimg_clamp_negativ(&dst);
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if (foo) {
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fprintf(stderr, "clamped %d negative pixels\n", foo);
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}
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foo = fimg_save_as_png(&dst, "f3x3b.png", 0);
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// foo = fimg_save_as_pnm(&dst, "f3x3a.pnm", 0);
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fimg_destroy(&src); fimg_destroy(&dst);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_filtrage_2x2(char *infile)
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{
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FloatImg fimg;
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int foo, idx;
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char buffer[100];
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if (NULL != infile) {
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fprintf(stderr, "%s: loading %s\n", __func__, infile);
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foo = fimg_create_from_dump(infile, &fimg);
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if (foo) {
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
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return foo;
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}
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}
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else {
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fprintf(stderr, "%s is creating the picz\n", __func__);
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
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fimg_draw_something(&fimg);
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}
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foo = fimg_save_as_pnm(&fimg, "source.pnm", 0);
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/*
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* running multiple filters so you can
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* watch the up-left shift :)
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*/
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for (idx=0; idx<5; idx++) {
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foo = fimg_lissage_2x2(&fimg);
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sprintf(buffer, "filter%03d.png", idx);
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foo = fimg_save_as_png(&fimg, buffer, 0);
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if (verbosity) {
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fprintf(stderr, "%s %d\n", buffer, foo);
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}
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}
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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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int essai_geometrie(char *infile)
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{
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FloatImg fimg, result;
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int foo;
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if (NULL != infile) {
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fprintf(stderr, "loading %s\n", infile);
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foo = fimg_create_from_dump(infile, &fimg);
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if (foo) {
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
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return foo;
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}
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}
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else {
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
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fimg_draw_something(&fimg);
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}
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foo = fimg_save_as_pnm(&fimg, "source.pnm", 0);
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memset(&result, 0, sizeof(FloatImg));
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foo = fimg_halfsize_0(&fimg, &result, 0);
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fprintf(stderr, "retour halfsize -> %d\n", foo);
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if (foo) {
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return -2;
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}
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if (verbosity) fimg_describe(&result, "result after halfsize");
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foo = fimg_save_as_pnm(&result, "something.pnm", 0);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_sfx0(char *infile)
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{
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FloatImg fimg;
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int foo;
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if (NULL != infile) {
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fprintf(stderr, "loading %s\n", infile);
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foo = fimg_create_from_dump(infile, &fimg);
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if (foo) {
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fprintf(stderr, "%s: err load '%s'\n", __func__, infile);
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return foo;
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}
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}
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else {
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
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fimg_draw_something(&fimg);
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}
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foo = fimg_save_as_pnm(&fimg, "something.pnm", 0);
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if (foo) {
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fprintf(stderr, "%s: err save %d\n", __func__, foo);
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return -6;
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}
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foo = fimg_killcolors_a(&fimg, 0.0);
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foo = fimg_save_as_pnm(&fimg, "colorskilled-a.pnm", 0);
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if (foo) {
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fprintf(stderr, "%s: err save %d\n", __func__, foo);
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return -6;
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}
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foo = fimg_killcolors_b(&fimg, 0.0);
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foo = fimg_save_as_pnm(&fimg, "colorskilled-b.pnm", 0);
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if (foo) {
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fprintf(stderr, "%s: err save %d\n", __func__, foo);
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return -6;
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}
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_parse_double(void)
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{
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int foo;
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double dval;
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char *str;
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str = "12.34"; dval = 0.0;
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foo = parse_double(str, &dval);
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printf("%-10s -> %3d %g\n", str, foo, dval);
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str = "12e4"; dval = 0.0;
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foo = parse_double(str, &dval);
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printf("%-10s -> %3d %g\n", str, foo, dval);
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str = "5s"; dval = 0.0;
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foo = parse_double(str, &dval);
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printf("%-10s -> %3d %g\n", str, foo, dval);
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str = "PORN"; dval = 0.0;
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foo = parse_double(str, &dval);
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printf("%-10s -> %3d %g\n", str, foo, dval);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_detect_type(void)
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{
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int foo;
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char *fname;
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foo = format_from_extension(fname="foo.fimg");
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printf("%-10s %d\n\n", fname, foo);
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foo = format_from_extension(fname="foo.pnm");
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printf("%-10s %d\n\n", fname, foo);
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foo = format_from_extension(fname="foo.png");
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printf("%-10s %d\n\n", fname, foo);
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foo = format_from_extension(fname="foo.xyzzy");
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printf("%-10s %d\n\n", fname, foo);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_rampes(void)
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{
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FloatImg fimg;
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int foo;
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fimg_create(&fimg, 640, 480, FIMG_TYPE_RGB);
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foo = fimg_hdeg_a(&fimg, (double)3.141592654);
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fprintf(stderr, "make h deg -> %d\n", foo);
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foo = fimg_save_as_pnm(&fimg, "hdeg.pnm", 0);
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fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo);
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foo = fimg_vdeg_a(&fimg, (double)3.141592654);
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fprintf(stderr, "make h deg -> %d\n", foo);
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foo = fimg_save_as_pnm(&fimg, "vdeg.pnm", 0);
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fprintf(stderr, "%s: save as pnm -> %d\n", __func__, foo);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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int essai_ecrire_png(char *fname)
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{
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FloatImg fimg;
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int foo;
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fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
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fimg_draw_something(&fimg);
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/* XXX
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for (foo=0; foo<512; foo++) {
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fimg_plot_rgb(&fimg, foo, foo, 17000.0, 8000.0, 11111.1);
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}
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*/
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foo = fimg_save_as_pnm(&fimg, "quux.pnm", 0);
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fprintf(stderr, "save as pnm -> %d\n", foo);
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foo = fimg_save_as_png(&fimg, fname, 0);
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fprintf(stderr, "save as png -> %d\n", foo);
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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, opt;
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char *filename;
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puts("++++++++++++++++++++++++++++++++");
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global_fvalue = 1.0;
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while ((opt = getopt(argc, argv, "hk:v")) != -1) {
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switch(opt) {
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// case 'h': help(0); break;
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case 'k': global_fvalue = atof(optarg); break;
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case 'v': verbosity++; break;
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}
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}
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fprintf(stderr, "argc %d optind %d\n", argc, optind);
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filename = NULL;
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if (1 == argc-optind) filename = argv[optind];
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/*
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foo = essai_filtrage_2x2(filename);
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if (foo) {
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fprintf(stderr, "Filtre 2x2 ====> %d\n", foo);
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}
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*/
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foo = essai_rotate(filename);
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if (foo) {
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fprintf(stderr, "Essai ====> %d\n", foo);
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}
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fprintf(stderr, "++++++++++++++ end of pid %d\n", getpid());
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return 0;
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}
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/* --------------------------------------------------------------------- */
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