/********************************
Author: Sravanthi Kota Venkata
********************************/

#include <stdio.h>
#include <stdlib.h>
#include "disparity.h"

void integralImage2D2D(F2D* SAD, F2D* integralImg)
{
    int nr, nc, i, j;
    
    nr = SAD->height;
    nc = SAD->width;
    
    for(i=0; i<nc; i++)
        subsref(integralImg,0,i) = subsref(SAD,0,i);
    
    for(i=1; i<nr; i++)
        for(j=0; j<nc; j++)
        {
            subsref(integralImg,i,j) = subsref(integralImg, (i-1), j) + subsref(SAD,i,j);
        }

    for(i=0; i<nr; i++)
        for(j=1; j<nc; j++)
            subsref(integralImg,i,j) = subsref(integralImg, i, (j-1)) + subsref(integralImg,i,j);

    return;
    
}