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Corner Detectors

AForge.NET framework provides set of routines aimed for corners detecion - searching object's corners an a specified image.

Below is the list of some corner detection tools and the result of their application to the below source image.

Source image

Moravec Corners Detector
The routine implements Moravec corners detector.

// create corner detector's instance
MoravecCornersDetector mcd = new MoravecCornersDetector( );
// process image searching for corners
List<IntPoint> corners = mcd.ProcessImage( image );
// process points
foreach ( IntPoint corner in corners )
{
    // ... 
}

Susan Corners Detector
The routine implements Susan corners detector.

// create corners detector's instance
SusanCornersDetector scd = new SusanCornersDetector( );
// process image searching for corners
List<IntPoint> corners = scd.ProcessImage( image );
// process points
foreach ( IntPoint corner in corners )
{
    // ... 
}

Corners Marker
The corners marker filter may be a good addition to corner detection routines, which is used to highlight objects' corners found by specified detector.

// create corner detector's instance
SusanCornersDetector scd = new SusanCornersDetector( );
// create corner maker filter
CornersMarker filter = new CornersMarker( scd, Color.Red );
// apply the filter
filter.ApplyInPlace( image );