AlphaBlend example for Delphi
LEADImage2.Bitmap:= LEADImage1.Bitmap; LEADImage2.IntensityDetect (150, 250) ; LEADImage1.AlphaBlend (0, 0, LEADImage1.BitmapWidth, LEADImage1.BitmapHeight, LEADImage2.Bitmap, 0, 0, 128);