C# :HImage转Mat方法

原来网上查过HImage转Mat的方式，本来想直接copy，奈何查到的总有不完美的地方，且最近还从之前的代码发现了bug后改掉了。

这段代码测试后可用，直接分享出来。
我的halcon版本是 17.12 后面新版本是否使用可以同步留言。
OpenCV是用的C# nugget包下拉的，这个根据个人.net Framework 版本做调整就好

 public Mat HImageToMat(HImage hImage){try{Mat mImage;HTuple htChannels;HOperatorSet.CountChannels(hImage, out htChannels);if (htChannels.Length == 0 || (htChannels[0].I != 1 && htChannels[0].I != 3))return null;HTuple width, height;hImage.GetImageSize(out width, out height);// 处理单通道图像if (htChannels[0].I == 1){HTuple ptr, type;HOperatorSet.GetImagePointer1(hImage, out ptr, out type, out _, out _);MatType cvType = GetCvType(type);mImage = new Mat(height, width, cvType);unsafe{byte* srcPtr = (byte*)ptr.IP;int step = (int)mImage.Step();for (int row = 0; row < height; row++){Buffer.MemoryCopy(srcPtr + row * width,mImage.DataPointer + row * step,step,width);}}return mImage;}// 处理三通道图像else{HTuple ptrR, ptrG, ptrB, type;HOperatorSet.GetImagePointer3(hImage, out ptrR, out ptrG, out ptrB, out type, out _, out _);MatType cvType = GetCvType(type);Mat[] channels = new Mat[3]{new Mat(height, width, cvType), // Bnew Mat(height, width, cvType), // Gnew Mat(height, width, cvType)  // R};unsafe{// 复制数据到各通道 (Halcon: R-G-B → OpenCV: B-G-R)CopyChannel(ptrB, channels[0], width, height); // BCopyChannel(ptrG, channels[1], width, height); // GCopyChannel(ptrR, channels[2], width, height); // R}mImage = new Mat();Cv2.Merge(channels, mImage);foreach (var channel in channels)channel.Dispose();return mImage;}}catch (Exception ex){throw new Exception("HImage转Mat失败", ex);}}

That 's all . Thank you.