FrequencyFilter example for Delphi

{ This Example supposed that you have initialized the FT data
by calling InitFourierTransformationData method }

   { filters the frequencies}
   LEADImage1.FrequencyFilter( 0, 0, Trunc(LEADImage1.BitmapWidth / 4), Trunc(LEADImage1.BitmapHeight / 2), FRQ_INSIDE_X + FRQ_INSIDE_Y );