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ColorReplaceCommand Class
See Also  Members  



Replaces the specified color by adjusting values of hue, saturation and brightness. Supported in Silverlight, Windows Phone 7

Object Model

ColorReplaceCommand ClassColorReplaceCommandColor Class

Syntax

Visual Basic (Declaration) 
Public Class ColorReplaceCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage)Copy Code
Dim instance As ColorReplaceCommand
C# 
public class ColorReplaceCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand  
C++/CLI 
public ref class ColorReplaceCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand  

Example

Run the ColorReplaceCommand on an image to change the red color by rotating its hue 90 degree.

Visual BasicCopy Code
Public Sub ColorReplaceCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim command As ColorReplaceCommand = New ColorReplaceCommand
   Dim Data() As ColorReplaceCommandColor
   ReDim Data(0)
   Data(0) = New ColorReplaceCommandColor
   Data(0).Color = New RasterColor(200, 0, 35)
   Data(0).Fuzziness = 300
   command.Colors = Data
   command.Hue = 9000
   command.Saturation = 0
   command.Brightness = 0
   command.Run(leadImage)
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void ColorReplaceCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      ColorReplaceCommand command       = new ColorReplaceCommand();
      ColorReplaceCommandColor[] data   = new ColorReplaceCommandColor[1];
      data[0]                           = new ColorReplaceCommandColor();
      data[0].Color                     = new RasterColor(200, 0, 35);
      data[0].Fuzziness                 = 100;
      command.Colors                    = data;
      command.Hue                       = 9000;
      command.Saturation                = 0;
      command.Brightness                = 0;
      command.Run(image);
      codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void ColorReplaceCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   ColorReplaceCommand command       = new ColorReplaceCommand();
   ColorReplaceCommandColor[] data   = new ColorReplaceCommandColor[1];
   data[0]                           = new ColorReplaceCommandColor();
   data[0].Color                     = new RasterColor(200, 0, 35);
   data[0].Fuzziness                 = 100;
   command.Colors                    = data;
   command.Hue                       = 9000;
   command.Saturation                = 0;
   command.Brightness                = 0;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
SilverlightVBCopy Code
Public Sub ColorReplaceCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As ColorReplaceCommand = New ColorReplaceCommand()
   Dim data As ColorReplaceCommandColor() = New ColorReplaceCommandColor(0){}
   data(0) = New ColorReplaceCommandColor()
   data(0).Color = New RasterColor(200, 0, 35)
   data(0).Fuzziness = 100
   command.Colors = data
   command.Hue = 9000
   command.Saturation = 0
   command.Brightness = 0
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

Remarks

  • This command replaces the specified color by adjusting value of hue, saturation and brightness. The value of the Fuzziness property of the ColorReplaceCommandColor class determines the range around each color where the pixels will be changed according to Hue, Saturation and Brightness.
  • This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
  • This command does not support signed data images.
  • This command does not support 32-bit grayscale images.

For more information, refer to Introduction to Image Processing With LEADTOOLS.
For more information, refer to Correcting Colors.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.Color.ColorReplaceCommand

Requirements

Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)

See Also

Reference

ColorReplaceCommand Members
Leadtools.ImageProcessing.Color Namespace
Introduction to Image Processing With LEADTOOLS
Correcting Colors
ChangeIntensityCommand Class
GammaCorrectCommand Class
ChangeContrastCommand Class
HistogramContrastCommand Class
StretchIntensityCommand Class
RemapIntensityCommand Class
InvertCommand Class
ChangeSaturationCommand Class
HistogramEqualizeCommand Class
Leadtools.ImageProcessing.FillCommand
HistogramCommand Class
Leadtools.ImageProcessing.Core.WindowLevelCommand
ChangeHueCommand Class
Leadtools.ImageProcessing.Effects.AverageCommand
Leadtools.ImageProcessing.Core.MedianCommand
Leadtools.ImageProcessing.Effects.AddNoiseCommand
IntensityDetectCommand Class
Leadtools.ImageProcessing.Effects.SpatialFilterCommand
Leadtools.ImageProcessing.Effects.BinaryFilterCommand
Leadtools.ImageProcessing.Core.MaximumCommand
Leadtools.ImageProcessing.Core.MinimumCommand
Leadtools.ImageProcessing.SpecialEffects.ShadowCommand
ChangeHueSaturationIntensityCommand Class
ColorThresholdCommand Class
Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand
Leadtools.ImageProcessing.Core.DiscreteFourierTransformCommand
Leadtools.ImageProcessing.Core.FastFourierTransformCommand
Leadtools.ImageProcessing.Core.FourierTransformDisplayCommand
Leadtools.ImageProcessing.Core.FrequencyFilterCommand
Leadtools.ImageProcessing.Core.FrequencyFilterMaskCommand
MathematicalFunctionCommand Class
Leadtools.ImageProcessing.SpecialEffects.RevEffectCommand
SegmentCommand Class
Leadtools.ImageProcessing.Core.SubtractBackgroundCommand
Leadtools.ImageProcessing.Effects.UserFilterCommand
AdjustTintCommand Class
Leadtools.ImageProcessing.Core.HalfToneCommand