#include
#include
#include
using?namespace?std;

#include
#include
#include
using?namespace?cv;

void?main（）
{
	Mat?I1?=?imread（“D:/results/window-0.jpg“1）;
	Mat?I2?=?imread（“D:/results/window-1.jpg“?1）;
	double?psnrssim;
	Mat?s1;
	absdiff（I1?I2?s1）;???????//?|I1?-?I2|AbsDiff函數(shù)是?OpenCV?中計(jì)算兩個(gè)數(shù)組差的絕對(duì)值的函數(shù)
	s1.convertTo（s1?CV_32F）;??//?這里我們使用的CV_32F來計(jì)算，因?yàn)?位無符號(hào)char是不能進(jìn)行平方計(jì)算
	s1?=?s1.mul（s1）;???????????//?|I1?-?I2|^2

	Scalar?s?=?sum（s1）;?????????//對(duì)每一個(gè)通道進(jìn)行加和

	double?sse?=?s.val[0]?+?s.val[1]?+?s.val[2];?//?sum?channels

	if?（sse?<=?1e-10）?//?對(duì)于非常小的值我們將約等于0
		psnr?=?0;
	else
	{
		double??mse?=?sse?/?（double）（I1.channels（）?*?I1.total（））;//計(jì)算MSE
		double?psnr?=?10.0*log10（（255?*?255）?/?mse）;
		cout?<		cout?<	}
	I1.convertTo（I1?CV_32F）;
	I2.convertTo（I2