计算图像的平均灰度值与灰度均方差
Mat mat_mean, mat_stddev; meanStdDev(InputImage, mat_mean, mat_stddev);//求灰度图像的均值、均方差 m = mat_mean.at(0, 0); s = mat_stddev.at (0, 0);

计算图像的平均灰度值与灰度均方差
Mat mat_mean, mat_stddev; meanStdDev(InputImage, mat_mean, mat_stddev);//求灰度图像的均值、均方差 m = mat_mean.at(0, 0); s = mat_stddev.at (0, 0);