SwapColorsCommand Class

Summary

Swaps the specified color channels.

Syntax

Objective-C

C++/CLI

Java

Python

public class SwapColorsCommand : RasterCommand

@interface LTSwapColorsCommand : LTRasterCommand

public class SwapColorsCommand 
    extends RasterCommand

public ref class SwapColorsCommand : public RasterCommand

class SwapColorsCommand(RasterCommand):

Remarks

This command changes the image data.
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 supports signed data images.
This command does not support 32-bit grayscale images.

For more information, refer to Correcting Colors.

Swap Colors Function - Before

Swap Colors Function - After

View additional platform support for this Swap Colors function.

Example

Run the SwapColorsCommand on an image.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void SwapColorsCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg")); 
 
   // Prepare the command 
   SwapColorsCommand command = new SwapColorsCommand(); 
   command.Type = SwapColorsCommandType.RedGreen; 
   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:\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 swapColorsCommandExample() { 
 
   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")); 
 
   // Prepare the command 
   SwapColorsCommand command = new SwapColorsCommand(); 
   command.setType(SwapColorsCommandType.RED_GREEN); 
   command.run(image); 
   codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "Result.jpg"), RasterImageFormat.JPEG, 24); 
 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")); 
   assertTrue(new File(LEAD_VARS_IMAGES_DIR).exists()); 
 
}