unit filterSigmoid;
(* ***** BEGIN LICENSE BLOCK *****
 * Copyright (C) 2004 Durand Emmanuel
 * Copyright (C) 2004 Burgel Eric
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact :
 *   filters@edurand.com
 *   filters@burgel.com
 *
 * ***** END LICENSE BLOCK ***** *)

{
 edurand (filters@edurand.com)
}

{
 use 'Itk' implementation
}

interface
uses
  filter, fparameters, image;

type
  TFilterSigmoid = class(TFilter)
  public
    constructor Create; override;
    procedure Run(); override;
  private
    parameterImageIn, parameterImageOut : TParameterImage;
    parameterIntensityMinimum, parameterIntensityMaximum : TParameterInteger;
    parameterAlpha : TParameterSingle;
    parameterBeta : TParameterInteger;
  end;

implementation
uses
  imageIO, wrapper_itk;

constructor TFilterSigmoid.Create;
begin
  inherited;
  parameterImageIn:=addParameterImage('inImage', 'input image');
  parameterImageOut:=addParameterImage('outImage', 'result image');
  parameterIntensityMinimum := addParameterInteger('intensityMinimum', 'intensity minimum', 0, 255, 100);
  parameterIntensityMaximum := addParameterInteger('intensityMaximum', 'intensity maximum', 0, 255, 200);
  parameterAlpha := addParameterSingle('alpha', 'alpha', -100, 100, 50);
  parameterBeta := addParameterInteger('beta', 'beta', -255, 255, 0);
end;

procedure TFilterSigmoid.Run();
begin
  if (parameterImageIn.Image<>nil) and (parameterImageOut.Image<>nil) then begin
    wrapper_itk.filterItkSigmoid(
      parameterImageIn.Image, parameterImageOut.Image,
      parameterIntensityMinimum.Value,
      parameterIntensityMaximum.Value,
      parameterAlpha.Value,
      parameterBeta.Value
    );
  end;
end;

end.