SampleTargetCommand Class

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

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

'Declaration

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

'Usage

Dim instance As SampleTargetCommand

public sealed class SampleTargetCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.Color.SampleTargetCommand()

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

For example, suppose you are working with a color image. In the SampleColor property or the sampleColor parameter, set the red value portion of the RasterColor structure to 125, the green portion to 165 and the blue portion to 100. In the TargetColor property or the targetColor parameter you set the red value portion to 170, the green to 120 and the blue to 200. If you set SampleTargetCommandFlags.Blue in the Flags property or the flags parameter, then for every pixel in the image that has a blue value of 100, that blue value will be changed to 200, thus shifting the colors in the image. Depending on whether you set SampleTargetCommandFlags.Low, SampleTargetCommandFlags.Mid, or SampleTargetCommandFlags.High, either the shadow values in the blue channel will be remapped, or the midtone values in the blue channel will be remapped, or the highlight values in the blue channel will be remapped.
This command supports 12 and 16-bit grayscale and 48 and 64-bit color images.
For gray scale images the gray value of the SampleColor and TargetColor properties or the sampleColor and targetColor parameters are used, and the different channel flags have the same effect since it works on the same channel (gray channel). 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 SampleTargetCommand on an image.

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

Copy Code

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

   
Public Sub SampleTargetCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp"))

   ' Prepare the command
   Dim command As SampleTargetCommand = New SampleTargetCommand
   command.SampleColor = New RasterColor(50, 100, 150)
   command.TargetColor = New RasterColor(60, 90, 150)
   command.Flags = SampleTargetCommandFlags.Red Or SampleTargetCommandFlags.High
   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 SampleTargetCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "sample5.cmp"));

   // Prepare the command
   SampleTargetCommand command = new SampleTargetCommand();
   command.SampleColor = new RasterColor(50, 100, 150);
   command.TargetColor = new RasterColor(60, 90, 150);
   command.Flags       = SampleTargetCommandFlags.Red | SampleTargetCommandFlags.High;
   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 SampleTargetCommandExample()
{
   // 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
   SampleTargetCommand command = new SampleTargetCommand();
   command.SampleColor = RasterColorHelper.Create(50, 100, 150);
   command.TargetColor = RasterColorHelper.Create(60, 90, 150);
   command.Flags       = SampleTargetCommandFlags.Red | SampleTargetCommandFlags.High;
   command.Run(image);

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

Target Platforms

Reference