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

Objective-C

C++/CLI

Java

Python

public class ColorSeparateCommand : RasterCommand

@interface LTColorSeparateCommand : LTRasterCommand

public class ColorSeparateCommand 
    extends RasterCommand

public ref class ColorSeparateCommand : public RasterCommand

class ColorSeparateCommand(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.

Color Separate Function - Before

Color Separate Function - After

View additional platform support for this Color Separate function.

Example

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

Java

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:\LEADTOOLS23\Resources\Images"; 
}

 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.color.*; 
 
 
public void colorSeperateCommandExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "cannon.jpg")); 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "LEAD_colorSeperate.tif"); 
 
   // Prepare the command 
   ColorSeparateCommand command = new ColorSeparateCommand(); 
   command.setType(ColorSeparateCommandType.RGB); 
   command.run(image); 
   for (int i = 3; i >= 1; i--) { 
      command.getDestinationImage().setPage(i); 
      image.addPage(command.getDestinationImage()); 
   } 
   codecs.save(image, outputFileName, RasterImageFormat.TIF, 24); 
 
   assertTrue(new File(outputFileName).exists()); 
   System.out.println("Command run and image saved to " + outputFileName); 
 
}

Requirements

Target Platforms

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Color Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Color Namespace

Assemblies

ColorSeparateCommand Class

Reference