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#include "gd.h"
#include <stdio.h>
#include <stdlib.h>
void save_png(gdImagePtr im, const char *filename)
{
FILE *fp;
fp = fopen(filename, "wb");
if (!fp) {
fprintf(stderr, "Can't save png image %s\n", filename);
return;
}
gdImagePng(im, fp);
fclose(fp);
}
int main()
{
gdImagePtr im, im2;
FILE *fp;
char path[2048];
fp=fopen("resampledbug.jpeg", "rb");
if (!fp) {
fprintf(stderr, "Can't load /home/pierre/IM3801.jpg\n");
return 1;
}
im = gdImageCreateFromJpeg(fp);
fclose(fp);
if (!im) {
fprintf(stderr, "Can't load TIFF image %s\n", path);
return 1;
}
im2 = gdImageNeuQuant(im, 256, 3);
if (im2) {
gdImageSaveAlpha(im2, 1);
save_png(im2, "a_nnquant.png");
gdImageDestroy(im2);
} else {
printf("neu quant failed.\n");
}
gdImageTrueColorToPalette(im, 1, 256);
gdImageSaveAlpha(im, 1);
save_png(im, "a_jquant_dither.png");
gdImageDestroy(im);
return 0;
}
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