多通道处理
多通道处理:Mat dest_ = new Mat(dest.Height, dest.Width, dest.Type(), Scalar.Black);
//Cv2.CvtColor(MouseSelectObgj, dest_, ColorConversionCodes.GRAY2RGB);
Mat[] MouseSelectObgj3 = { MouseSelectObgj, MouseSelectObgj, MouseSelectObgj };
Cv2.Merge(MouseSelectObgj3, dest_);
参考:【1】https://blog.csdn.net/zanllp/article/details/79831153
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