opencvs/eyes/half.c

#include <stdio.h>
#include <malloc.h>

int main(int argc,char *argv[]) {
int xspan = atoi(argv[1]);
int yspan = atoi(argv[2]);
double *e = (double *)malloc(sizeof(double)*2*yspan*xspan);
double *f = (double *)malloc(sizeof(double)*2*yspan*xspan/4);
fread(e,sizeof(double)*2*xspan*yspan,1,stdin);
int x,y;
for (y=0;y<yspan/2;y++) {
  for (x=0;x<xspan/2;x++) {
    int index1;
    int index2;
    index2 = y*(xspan/2)+x;
    index1 = (y*2)*(xspan)+(x*2);
    f[index2*2] =e[index1*2];
    f[index2*2+1] =e[index1*2+1]; 
   }
 }
fwrite(f,sizeof(double)*2*xspan*yspan/4,1,stdout);
exit(0);
}
1	#include <stdio.h>
2	#include <malloc.h>
3
4	int main(int argc,char *argv[]) {
5	int xspan = atoi(argv[1]);
6	int yspan = atoi(argv[2]);
7	double e = (double )malloc(sizeof(double)2yspan*xspan);
8	double f = (double )malloc(sizeof(double)2yspan*xspan/4);
9	fread(e,sizeof(double)2xspan*yspan,1,stdin);
10	int x,y;
11	for (y=0;y<yspan/2;y++) {
12	for (x=0;x<xspan/2;x++) {
13	int index1;
14	int index2;
15	index2 = y*(xspan/2)+x;
16	index1 = (y2)(xspan)+(x*2);
17	f[index22] =e[index12];
18	f[index22+1] =e[index12+1];
19	}
20	}
21	fwrite(f,sizeof(double)2xspan*yspan/4,1,stdout);
22	exit(0);
23	}