mirror of
https://github.com/eddyem/improclib.git
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51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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* This file is part of the improclib project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "improclib.h"
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#include <stdio.h>
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#include <usefull_macros.h>
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int main(int argc, char **argv){
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if(argc != 2){
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fprintf(stderr, "Usage: %s filename - open bw image file, equalize histogram, plot two crosses ans save as output.jpg\n", argv[0]);
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return 1;
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}
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ilImage *I = ilImage_read(argv[1]);
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if(!I){
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fprintf(stderr, "Can't read %s\n", argv[1]);
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return 2;
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}
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int w = I->width, h = I->height;
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uint8_t *eq = ilequalize8(I, 3, 0.1);
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ilImage_free(&I);
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if(!eq) return 3;
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ilImg3 *I3 = MALLOC(ilImg3, 1);
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I3->data = eq;
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I3->height = h;
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I3->width = w;
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ilPattern *cross = ilPattern_xcross(25, 25);
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ilPattern_draw3(I3, cross, 30, 30, ilColor_red);
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ilPattern_draw3(I3, cross, 150, 50, ilColor_green);
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ilPattern_free(&cross);
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int ret = ilImg3_jpg("output.jpg", I3, 95);
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ilImg3_free(&I3);
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if(!ret) return 4;
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printf("File 'output.jpg' ready\n");
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return 0;
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}
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