SetParameters Method

public void SetParameters( 
   ConversionParameters parameters
)

public byte[] GetCmykBufferFromImage(RasterImage bgrImage)
   {
      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();
      // Image buffer array
      byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height];

      // get image buffer
      for (int i = 0; i < bgrImage.Height; i++)
          bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine);

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      byte[] cmykBuffer = new byte[bgrImage.Height * bgrImage.Width * 4];

      try
      {
         // Start the color conversion
         converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, null);

         // convert the image buffer 
         converter.Convert(bgrBuffer, // input buffer
            0, // offset from the begining of the source buffer
            cmykBuffer, // output buffer
            0, // offset from the begining of the destination buffer
            bgrImage.Width, // pixels width
            bgrImage.Height, // pixels height
            bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)),
            0); // 0 bytes align

         // stop the conversion
         converter.Stop();
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }

      RasterColorConverterEngine.Shutdown();

      return cmykBuffer;
   }

   public RasterImage GetImageFromCmykBuffer(byte[] cmykBuffer, int width, int height)
   {
      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      // Initialize an image to hold the converted buffer.
      RasterImage cmykImage = null;
      try
      {
         cmykImage = new RasterImage(RasterMemoryFlags.Conventional, width, height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, null, IntPtr.Zero, 0);

         // Start the color conversion
         converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, null);

         // convert the image buffer
         converter.ConvertToImage(cmykBuffer, // converted buffer
            0,                // offset from the begining of the source buffer
            cmykImage,        // image to be save
            width,   // pixels width
            height,  // pixels height
            0,                // 0 bytes align
            cmykImage.BytesPerLine - (cmykImage.Width * (cmykImage.BitsPerPixel / 8)));

         // stop the conversion
         converter.Stop();
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }
      // Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown();
      return cmykImage;
   }


   public void SetParametersExample()
   {
      // Initialize the RasterCodecs
      RasterCodecs codecs = new RasterCodecs();

      // StartUp the ColorConversion.
      RasterColorConverterEngine.Startup();

      // The input file name
      string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp");

      // load the input image as Bgr.
      RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1);

      int width = bgrImage.Width;
      int height = bgrImage.Height;
      byte[] cmykBuffer = GetCmykBufferFromImage(bgrImage);

      // Initialize the Rgb buffer array
      byte[] rgbBuffer = new byte[cmykBuffer.Length - cmykBuffer.Length / 4];

      // Initialize a new Converter object
      RasterColorConverterEngine converter = new RasterColorConverterEngine();

      // Initialize a new ConversionParameters class object.
      ConversionParameters convParams = new ConversionParameters();

      // we want to use the built in LEAD ICC conversion method and built in conversion
      convParams.Method = ConversionMethodFlags.UseBuiltIn | ConversionMethodFlags.UseIcc;

      // set the active conversion method
      convParams.ActiveMethod = ConversionMethodFlags.UseBuiltIn;

      // Initialize WhitePoint property class.
      convParams.WhitePoint = new ConversionWhitePoint();

      // Set WhitePoint property.
      ConversionWhitePoint whitePoint = new ConversionWhitePoint();
      whitePoint.WhitePoint = ConversionWhitePointType.D50;
      convParams.WhitePoint = whitePoint;

      // Initialize CmykParameters property class.
      convParams.CmykParameters = new ConversionCmykParameters();

      // Set GcrLevel property.
      ConversionCmykParameters cmykParameters = new ConversionCmykParameters();
      cmykParameters.GcrLevel = 150;
      convParams.CmykParameters = cmykParameters;

      try
      {
         // Initialize the ColorConversion
         converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Rgb, convParams);

         // convert the Cmyk buffer to Rgb buffer using Built-in conversion.
         converter.Convert(cmykBuffer,
            0,
            rgbBuffer,
            0,
            width,
            height,
            0,
            bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)));

         // Change the active method for conversion
         convParams.Method = ConversionMethodFlags.ChangeActiveMethod | ConversionMethodFlags.ChangeCmyk;

         // Switch to ICC conversion method
         convParams.ActiveMethod = ConversionMethodFlags.UseIcc;

         // Set Mask property.
         cmykParameters.Mask = ConversionCmykMask.Gcr;

         // Set GcrLevel property.
         cmykParameters.GcrLevel = 175;
         convParams.CmykParameters = cmykParameters;

         // Update the conversion parameters
         converter.SetParameters(convParams);

         // convert the image buffer 
         converter.Convert(cmykBuffer, 0, rgbBuffer, 0, width, height, 0, 0);

         // Stop the ColorConversion
         converter.Stop();
      }
      catch(Exception ex)
      {
         MessageBox.Show(ex.Message);
         rgbBuffer = null;
      }

      // the output File Name.
      string outputFileName = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp");

      // Save the converted Image
      RasterImage cmykImage = GetImageFromCmykBuffer(cmykBuffer, width, height);
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24);

      // Shutdown the ColorConversion.
      RasterColorConverterEngine.Shutdown();

      // Shutdown the RasterColor
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}