# RescaleImage.cs

    /*=========================================================================

      Program: GDCM (Grassroots DICOM). A DICOM library
      Module:  $URL$

      Copyright (c) 2006-2009 Mathieu Malaterre
      All rights reserved.
      See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.

         This software is distributed WITHOUT ANY WARRANTY; without even
         the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
         PURPOSE.  See the above copyright notice for more information.

    =========================================================================*/

    /*
     * Usage:
     * $ export LD_LIBRARY_PATH=$HOME/Projects/gdcm/debug-gcc/bin
     * $ mono bin/DecompressImage.exe gdcmData/012345.002.050.dcm rescaled.dcm
     */
    using System;
    using gdcm;

    public class DecompressImage
    {
      public static int Main(string[] args)
        {
        string file1 = args[0];
        ImageReader reader = new ImageReader();
        reader.SetFileName( file1 );
        bool ret = reader.Read();
        if( !ret )
          {
          return 1;
          }

        Image image = reader.GetImage();
        PixelFormat pixeltype = image.GetPixelFormat();

        Rescaler r = new Rescaler();
        r.SetIntercept( 0 );
        r.SetSlope( 1.2 );
        r.SetPixelFormat( pixeltype );
        PixelFormat outputpt = new PixelFormat( r.ComputeInterceptSlopePixelType() );

        System.Console.WriteLine( "pixeltype" );
        System.Console.WriteLine( pixeltype.toString() );
        System.Console.WriteLine( "outputpt" );
        System.Console.WriteLine( outputpt.toString() );

        uint len = image.GetBufferLength();
        short[] input = new short[ len / 2 ]; // sizeof(short) == 2
        image.GetArray( input );

        double[] output = new double[ len / 2 ];
        r.Rescale( output, input, len );

        // First Pixel is:
        System.Console.WriteLine( "Input:" );
        System.Console.WriteLine( input[0] );

        System.Console.WriteLine( "Output:" );
        System.Console.WriteLine( output[0] );

        return 0;
        }
    }