#include <stdio.h>
#include <threshold.h>

#define LINHAS  64
#define COLUNAS 64

unsigned char in_img[LINHAS*COLUNAS];
unsigned char out_img[LINHAS*COLUNAS];
unsigned char zero[LINHAS*COLUNAS];

void main()
{
   int i;
   FILE      *fptr;
   int  readSize;

   fptr = fopen("arco.pix", "r");
   fseek(fptr, 0L, SEEK_SET);                              
   readSize = fread(in_img, sizeof(char), LINHAS*COLUNAS, fptr);
   printf("%d\n",readSize);
   for(i=0;i<LINHAS*COLUNAS;i++) {
       if(in_img[i]< '0')   in_img[i] = 0;
         if(in_img[i]<='9') in_img[i] = in_img[i] - '0';
         else               in_img[i] = in_img[i] - 'A'+10;
       in_img[i] = (15-in_img[i]) <<4;
       zero[i] = 0;
   }
                          
   threshold(in_img, out_img, COLUNAS, LINHAS, 10<<4);
}