public static Bitmap Laplacian3x3Filter(this Bitmap sourceBitmap,
bool grayscale = true)
{
Bitmap resultBitmap = ExtBitmap.ConvolutionFilter(sourceBitmap,
Matrix.Laplacian3x3, 1.0, 0, grayscale);
return(resultBitmap);
}
public static Bitmap KirschFilter(this Bitmap sourceBitmap,
bool grayscale = true)
{
Bitmap resultBitmap = ExtBitmap.ConvolutionFilter(sourceBitmap,
Matrix.Kirsch3x3Horizontal,
Matrix.Kirsch3x3Vertical,
1.0, 0, grayscale);
return(resultBitmap);
}
public static Bitmap Laplacian5x5OfGaussian5x5Filter1(this Bitmap sourceBitmap)
{
Bitmap resultBitmap = ExtBitmap.ConvolutionFilter(sourceBitmap,
Matrix.Gaussian5x5Type1, 1.0 / 159.0, 0, true);
resultBitmap = ExtBitmap.ConvolutionFilter(resultBitmap,
Matrix.Laplacian5x5, 1.0, 0, false);
return(resultBitmap);
}
public static Bitmap Laplacian3x3OfGaussian3x3Filter(this Bitmap sourceBitmap)
{
Bitmap resultBitmap = ExtBitmap.ConvolutionFilter(sourceBitmap,
Matrix.Gaussian3x3, 1.0 / 16.0, 0, true);
resultBitmap = ExtBitmap.ConvolutionFilter(resultBitmap,
Matrix.Laplacian3x3, 1.0, 0, false);
return(resultBitmap);
}