ColorReplaceCommand Class

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

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

'Declaration

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

'Usage

Dim instance As ColorReplaceCommand

public sealed class ColorReplaceCommand : Leadtools.ImageProcessing.IRasterCommand

@interface LTColorReplaceCommand : LTRasterCommand

public class ColorReplaceCommand extends RasterCommand

function Leadtools.ImageProcessing.Color.ColorReplaceCommand()

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

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.

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

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color

   
Public Sub ColorReplaceCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;

      
public void ColorReplaceCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;

      
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);
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Examples;

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();
}

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Color

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

Reference