#include 
#include <math.h>
#include 
#include     main()
{
   int i, j, width, length, extra, extra3;
   FILE *in, *outfile;
   unsigned char linec[54],lineh[1078],line1[3072],line2[1088],pixelxy[700][700];
   char infile[60], outname[60];    printf("Enter input image file name: ");
scanf("%s",infile);
in=fopen(infile,"rb");
fread(linec,1,54,in);
width=linec[19]*256 linec[18];
length=linec[23]*256 linec[22];
printf("width=%d   length=%d\n",width,length);
if (width>1024) {
   printf("*** image too large ***\n");
   return(0);
   }
extra=(4-width%4)%4;
extra3=(4-(width*3)%4)%4;    printf("Enter output image name (*.bmp): ");
scanf("%s",outname);
outfile=fopen(outname,"wb");          for (i=0;i<54;i  ) lineh[i]=0;          lineh[0]=66;
      lineh[1]=77;
      lineh[2]=(width*length 1078)%6;
      lineh[3]=((width*length 1078)e536)/256;
      lineh[4]=(width*length 1078)/65536;
          lineh[10]=54;
      lineh[11]=4;
      lineh[14]=40;
      lineh[18]=width%6;
      lineh[19]=width/256;
      lineh[22]=length%6;
      lineh[23]=length/256;
      lineh[26]=1;
      lineh[28]=8;              for (i=0; i<256; i  ) {
                  lineh[i*4 54]=i;
                  lineh[i*4 55]=i;
                  lineh[i*4 56]=i;
                  lineh[i*4 57]=0;
          }          fwrite(lineh,1,1078,outfile);              for (i=0; i