C++对图像进行归一化

lijingle

在C++进行深度学习推理时，需要对图像数据进行归一化处理，这里给出一个c++版本的归一化代码

float scale =  0.0078125f ;

float mean_value = 127.5f;

 

void Mat_L2_mormal(cv::Mat &image)

{

    for (int i = 0; i<image.rows; i++)

    {

         for (int j = 0; j<image.cols; j++)

        {

             image.at<Vec3b>(i, j)[0] = (image.at<Vec3b>(i, j)[0] - mean_value) * scale;

            image.at<Vec3b>(i, j)[1] = (image.at<Vec3b>(i, j)[1] - mean_value) * scale;

            image.at<Vec3b>(i, j)[2] = (image.at<Vec3b>(i, j)[2] - mean_value) * scale;

        }

    }

    

}