public static Bitmap filter(this Bitmap src, bool bnw)
{
if (src == null)
{
return(null);
}
//Bitmap ret = ExtBitmap.ConvolutionFilter(src, matrix, 1.0, 0, bnw);
//Bitmap ret = ExtBitmap.Laplacian5x5OfGaussian5x5Filter1(src);
Bitmap ret = ExtBitmap.AccordCanny(src);
return(ret);
}
public static Bitmap Laplacian5x5OfGaussian5x5Filter1(this Bitmap sourceBitmap)
{
Bitmap resultBitmap =
ExtBitmap.ConvolutionFilter(sourceBitmap,
Gaussian5x5Type1,
1.0 / 159.0, 0, true);
resultBitmap = ExtBitmap.ConvolutionFilter(resultBitmap,
Laplacian5x5, 1.0, 0, false);
return(resultBitmap);
}