ColorReplaceCommand Class

public class ColorReplaceCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

public sealed class ColorReplaceCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Color.ColorReplaceCommand()

public ref class ColorReplaceCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class ColorReplaceCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As ColorReplaceCommand

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.

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

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";
}

[TestMethod]
public async Task ColorReplaceCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   ColorReplaceCommand command       = new ColorReplaceCommand();
   ColorReplaceCommandColor[] data   = new ColorReplaceCommandColor[1];
   data[0]                           = new ColorReplaceCommandColor();
   data[0].Color                     = RasterColorHelper.Create(200, 0, 35);
   data[0].Fuzziness                 = 100;
   command.Colors                    = data;
   command.Hue                       = 9000;
   command.Saturation                = 0;
   command.Brightness                = 0;
   command.Run(image);

   string destFileName = @"result.jpg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jpeg, 0);
}

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();
}

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

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference