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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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#include <sys/resource.h>
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#include <wand/MagickWand.h>
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#include "uthash.h"
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/*
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This returns 0 if the image is grey and 1 if the image is colored
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This is useful for cleaning up the timeless information
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*/
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int test_if_image_bw(char *iname) {
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MagickPixelPacket input_pixel;
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MagickWand *input_wand = NULL;
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PixelWand *c_wand = NULL;
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PixelWand *c2_wand = NULL;
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input_wand =NewMagickWand();
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MagickReadImage(input_wand,iname);
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struct point *points_to_look_at;
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ssize_t width,height;
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width = MagickGetImageWidth(input_wand);
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height = MagickGetImageHeight(input_wand);
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int number_of_points;
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number_of_points=0;
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#define ThrowWandException(wand) \
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{ \
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char \
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*description; \
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\
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ExceptionType \
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severity; \
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\
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description=MagickGetException(wand,&severity); \
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(void) fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description); \
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description=(char *) MagickRelinquishMemory(description); \
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exit(-1); \
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}
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MagickBooleanType status;
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PixelIterator *input_iterator;
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PixelWand **input_pixels;
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register ssize_t x;
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ssize_t y;
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input_iterator=NewPixelIterator(input_wand);
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if ((input_iterator == (PixelIterator *) NULL) )
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ThrowWandException(input_wand);
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for (y=0; y < (ssize_t) height; y++)
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{
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input_pixels=PixelGetNextIteratorRow(input_iterator,&width);
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if ((input_pixels == (PixelWand **) NULL))
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break;
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for (x=0; x < (ssize_t) width; x++)
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{
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PixelGetMagickColor(input_pixels[x],&input_pixel);
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if ((input_pixel.red!=input_pixel.green)&&(input_pixel.red!=input_pixel.blue)) {
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fprintf(stderr,"%s %d,%d - %f,%f,%f\n",iname,(int)x,(int)y,input_pixel.red,input_pixel.green,input_pixel.blue);
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exit(0);
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}
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}
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}
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input_iterator=DestroyPixelIterator(input_iterator);
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input_wand=DestroyMagickWand(input_wand);
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printf("%s\n",iname);
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return (1);
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}
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int main(int argc,char **argv)
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{
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/* set the stack limit to 500 megabytes */
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const rlim_t stacksize = 2000*1024*1024; // 2 gigabytes
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struct rlimit rl;
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int result;
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result = getrlimit(RLIMIT_STACK, &rl);
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if (result == 0)
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{
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if (rl.rlim_cur < stacksize)
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{
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rl.rlim_cur = stacksize;
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result = setrlimit(RLIMIT_STACK, &rl);
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if (result != 0)
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{
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fprintf(stderr, "setrlimit returned result = %d\n", result);
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exit(-1);
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}
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}
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}
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else {
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fprintf(stderr, "getrlimit returned result = %d\n", result);
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exit(-1);
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}
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/* seed1 ip_Address fname */
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char *iname=argv[1];
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MagickWandGenesis();
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test_if_image_bw(iname);
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MagickWandTerminus();
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exit(0);
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}
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