SusanCornersDetector Class

The class implements Susan corners detector, which is described by S.M. Smith in: S.M. Smith, "SUSAN - a new approach to low level image processing", Internal Technical Report TR95SMS1, Defense Research Agency, Chobham Lane, Chertsey, Surrey, UK, 1995.

Note
Some implementation notes: Analyzing each pixel and searching for its USAN area, the 7x7 mask is used, which is comprised of 37 pixels. The mask has circle shape: Copy xxx xxxxx xxxxxxx xxxxxxx xxxxxxx xxxxx xxx In the case if USAN's center of mass has the same coordinates as nucleus (central point), the pixel is not a corner. For noise suppression the 5x5 square window is used.

The class processes only grayscale 8 bpp and color 24/32 bpp images. In the case of color image, it is converted to grayscale internally using GrayscaleBT709 filter.

Sample usage:

// 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 )
{
    // ... 
}

Reference