Extract the selected image channel
            
Namespace: OpenCvSharp.CPlusPlus
Assembly: OpenCvSharp.CPlusPlus (in OpenCvSharp.CPlusPlus.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax
Parameters
- arr
 - Type: OpenCvSharpCvArr
The source array. It should be a pointer to CvMat or IplImage - coiimg
 - Type: OpenCvSharp.CPlusPlusOutputArray
The destination array; will have single-channel, and the same size and the same depth as src - coi (Optional)
 - Type: SystemInt32
If the parameter is >=0, it specifies the channel to extract; If it is <0, src must be a pointer to IplImage with valid COI set - then the selected COI is extracted. [By default this is -1] 
See Also