AddCommand Class

Summary

Adds or averages the images in a list. AddCommand gets the 'list' of bitmaps from the RasterImage's BitmapList property.

Syntax

Objective-C

C++/CLI

Java

Python

public class AddCommand : RasterCommand

@interface LTAddCommand : LTRasterCommand

public class AddCommand 
    extends RasterCommand

public ref class AddCommand : public RasterCommand

class AddCommand(RasterCommand):

Remarks

This operation can be used to add several images of the same view to improve the lightness or brightness of the image. It can also eliminate the random noise contained in these images by doing an average of all images.
This command performs operations between data byte-by-byte. An image can be any color resolution. This command will allocate and store the resulting image in the DestinationImage property. The image resulting from this operation is internally copied from the first image in the list, before performing the adding operation. The operations are performed based on the smallest width and height of the input images.
All images must be either signed or unsigned.
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 32-bit grayscale images.

For more information, refer to Changing Brightness and Contrast.

Add Bitmaps Function - Before

Add Bitmaps Function - After

View additional platform support for this Add Bitmaps function.

Example

Run the AddCommand on an image.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
 
 
public void AddCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "AddCommand.tif")); 
   // Prepare the command 
   AddCommand command = new AddCommand(); 
   //Add Option. 
   command.Type = AddCommandType.Add; 
   command.Run(image); 
   codecs.Save(command.DestinationImage, Path.Combine(LEAD_VARS.ImagesDir, "AddCommandResult.bmp"), RasterImageFormat.Bmp, 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.AddCommand; 
import leadtools.imageprocessing.color.AddCommandType; 
 
 
public void addCommandExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   final String outputFilePath = combine(LEAD_VARS_IMAGES_DIR, "AddCommandResult.bmp"); 
 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "AddCommand.tif")); 
 
   // Prepare the command 
   AddCommand command = new AddCommand(); 
 
   // Add option 
   command.setType(AddCommandType.ADD); 
   command.run(image); 
 
   // Return the result 
   codecs.save(command.getDestinationImage(), outputFilePath, RasterImageFormat.BMP, 24); 
   assertTrue("File exists", (new File(outputFilePath)).exists()); 
   System.out.println("File saved to: " + outputFilePath); 
 
}