opening and closing using OpenCV

Question

How do you implement the techniques of image processing, opening, and closing using OpenCV with C#? Can anyone give me an example?

thank you

Answer 1

If you are using EmguCV (as go4sri assumed) the Code snippet for Opening EmguCV would look like this:

Image<Gray, Byte> src = new Image<Gray, Byte>( "Your Image.png" );
Image<Gray, Byte> dst = new Image<Gray, Byte>( src.Width, src.Height );
StructuringElementEx element = new StructuringElementEx( 3, 3, 1, 1, Emgu.CV.CvEnum.CV_ELEMENT_SHAPE.CV_SHAPE_CROSS );

CvInvoke.cvMorphologyEx( src, dst, IntPtr.Zero, element, CV_MORPH_OP.CV_MOP_OPEN, 1 );

ImageViewer.Show( dst, "Your morphed Image" );

For Closing you would just need to replace the Enum

CV_MORPH_OP.CV_MOP_CLOSE

For more Information about these functions visit EmguCV Doc

Answer 2

I am assuming that you are using EmguCV. You can use the MorphologyEx method which implements both simple and complex morphology based operations