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ColorSeparateCommand Class

Summary

Separates an image by color plane to produce one grayscale image per plane. You can specify any of several color-space models, including CMYK.

Syntax
C#
VB
Java
Objective-C
C++
public class ColorSeparateCommand : RasterCommand 
Public Class ColorSeparateCommand  
   Inherits RasterCommand 
@interface LTColorSeparateCommand : LTRasterCommand 
public class ColorSeparateCommand extends RasterCommand 
public ref class ColorSeparateCommand : public RasterCommand   

Remarks
  • The supported color-space models are Rgb, Cmyk, Cmy, Hsv, Hls, Xyz, Ycrcb, Yuv, Lab and Sct.
  • The pointers in the array should be in the appropriate order, which in most cases is the order of the letters in the name. For example, for CMY separation, the first pointer should be for the cyan plane, the second for magenta, and the third for yellow. The only exception is RGB, which should be in BGR (blue, green, red) order.
  • This class 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 class does not support signed data images.
  • This command does not support 32-bit grayscale images.

For more information, refer to Changing Brightness and Contrast. For more information, refer to Introduction to Image Processing With LEADTOOLS.

Example

Run the ColorSeparateCommand on an image and separate the color planes.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
public void ColorSeperateCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")); 
 
   // Prepare the command 
   ColorSeparateCommand command = new ColorSeparateCommand(); 
   command.Type = ColorSeparateCommandType.Rgb; 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
   for (int i = 3; i >= 1; i--) 
   { 
      command.DestinationImage.Page = i; 
      image.AddPage(command.DestinationImage); 
   } 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
 
Public Sub ColorSeperateCommandExample() 
   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 ColorSeparateCommand = New ColorSeparateCommand 
   command.Type = ColorSeparateCommandType.Rgb 
 
   command.Run(leadImage) 
   Dim i As Integer 
   For i = 3 To 1 Step -1 
      command.DestinationImage.Page = i 
      leadImage.AddPage(command.DestinationImage) 
   Next 
 
   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#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Examples; 
 
public void ColorSeperateCommandExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   ColorSeparateCommand command = new ColorSeparateCommand(); 
   command.Type = ColorSeparateCommandType.Rgb; 
   command.Run(image); 
 
   for (int i = 3; i >= 1; i--) 
   { 
      command.DestinationImage.Page = i; 
      image.AddPage(command.DestinationImage); 
   } 
 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.TifJpeg, 24, 1, -1, 1, CodecsSavePageMode.Append); 
   image.Dispose(); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
 
Public Sub ColorSeperateCommandExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As ColorSeparateCommand = New ColorSeparateCommand() 
   command.Type = ColorSeparateCommandType.Rgb 
   command.Run(image) 
 
   For i As Integer = 3 To 1 Step -1 
      command.DestinationImage.Page = i 
      image.AddPage(command.DestinationImage) 
   Next i 
 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.TifJpeg, 24, 1, -1, 1, CodecsSavePageMode.Append) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

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Leadtools.ImageProcessing.Color Assembly