如何改变实现图像减操作

Question

#include
#include

int main()
{
IplImage * image1, *image2, *image3;
image1 = cvLoadImage("1.jpg", 0);//以灰度图像的形式读入图片
image2 = cvLoadImage("2.jpg", 0);
cvNamedWindow("image", CV_WINDOW_AUTOSIZE);
cvNamedWindow("image2", CV_WINDOW_AUTOSIZE);
cvNamedWindow("image3", CV_WINDOW_AUTOSIZE);
cvShowImage("image", image3);
cvWaitKey(0);
unsigned char * ptr, *dst;
int i, j;
int height, width;
image3 = cvCreateImage(cvGetSize(image3), image3->depth, 1);

for (j = 0; j< height; j++)
{
    for (i = 0; i< width; i++)
    {
        ptr = image1->imageData + image2->imageData;
    }

}

}

Answer 1

大神们，快来啊