opencv 两幅图像直接相减

关键函数cvAbsDiff()函数 ,代码以下：ui #include "cv.h" #include "highgui.h" #include "cxcore.h"spa int main(int argc,char** argv) {cvNamedWindow("a",0);  IplImage* img=cvLoadImage("11.jpg");  cvShowImage("a",img)

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