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/****************************************************************************/
/* */
/* IMG* Image Processing Tools Library */
/* Program: imgAnd.c */
/* Author: Simon A.J. Winder */
/* Date: Thu Oct 20 20:45:30 1994 */
/* Copyright (C) 1994 Simon A.J. Winder */
/* */
/****************************************************************************/
#include "tools.h"
#define PRGNAME "And"
#define OPERATOR &
#define ERROR(e) imgError(e,PRGNAME)
#define ARG_ERROR(e,arg) imgArgError(e,arg,PRGNAME)
int main(int argc,char **argv)
{
it_image *i1,*i2,*i3;
int width,height,x,y,val;
IFHELP
{
fprintf(stderr,"img%s - Perform logical AND between images\n",
PRGNAME);
fprintf(stderr,"img%s [filename]\n",
PRGNAME);
fprintf(stderr," stdin: pbm\n");
fprintf(stderr," stdout: pbm\n");
fprintf(stderr," file: pbm\n");
exit(0);
}
imgStart(PRGNAME);
if(argc>2)
ERROR("invalid arguments");
do {
i1=i_read_image_file(stdin,IT_BIT,IM_FRAGMENT);
if(i1==NULL)
ERROR("can't import image file");
width=i1->width;
height=i1->height;
i2=i_create_image(width,height,IT_BIT,IM_FRAGMENT);
if(i2==NULL)
ERROR("out of memory");
if(argc==2)
{
i3=i_load_image(argv[1],-1,IT_BIT,IM_FRAGMENT);
if(i3==NULL)
ARG_ERROR("can't load image %s",argv[1]);
}
else
{
i3=i_read_image_file(stdin,IT_BIT,IM_FRAGMENT);
if(i3==NULL)
ERROR("can't import image file");
}
if(i3->width!=width || i3->height!=height)
ERROR("images are of different sizes");
for(y=0;y<height;y++)
for(x=0;x<width;x++)
{
val=im_get_bit_value(i1,x,y) OPERATOR im_get_bit_value(i3,x,y);
im_put_bit_value(i2,x,y,val&1);
}
i_destroy_image(i1);
i_destroy_image(i3);
i_write_image_file(stdout,i2,IF_BINARY);
i_destroy_image(i2);
} while(!feof(stdin));
imgFinish(PRGNAME);
return(0);
}
/* Version 1.0 (Oct 1994) */
/* Version 1.1 (Nov 1994) */
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