Emgu CV中的Alpha混合

Question

嗨，我正在学习Emgu CV。我想执行alpha混合（addWeighted）。我有以下代码

Image<Bgr, Byte> image = new Image<Bgr, Byte>(filename); 
Image<Gray, Byte> grayImage = image.Convert<Gray, Byte>(); 
Image<Bgr, Byte> blendImage; 

如何alpha混合这两个图像？ （Bgr和Gray）

Answer 1

尝试将灰度图像转换回颜色，然后将它们混合。

Image<Bgr, Byte> grayBGRImage = grayImage.Convert<Bgr, Byte>(); 
double alpha = 0.5; // Or however you would like to blend them 
double beta = 1 - alpha; 
double gamma = 0; 
Image<Bgr, Byte> blendImage = image.AddWeighted(grayBGRImage, alpha, beta, gamma);