AlphaBlendCommand Constructor(RasterImage,LeadPoint,LeadRect,int)

Summary

Initializes a new AlphaBlendCommand class object with explicit parameters.

Syntax

Objective-C

C++/CLI

Java

Python

public AlphaBlendCommand( 
   RasterImage sourceImage, 
   LeadPoint sourcePoint, 
   LeadRect destinationRect, 
   int opacity 
)

- (instancetype)initWithSourceImage:(LTRasterImage *)sourceImage sourcePoint:(LeadPoint)sourcePoint destinationRect:(LeadRect)destinationRect opacity:(NSInteger)opacity NS_DESIGNATED_INITIALIZER;

public AlphaBlendCommand( 
   RasterImage sourceImage, 
   LeadPoint sourcePoint, 
   LeadRect destinationRect, 
   int opacity 
);

public: 
AlphaBlendCommand(  
   RasterImage^ sourceImage, 
   LeadPoint sourcePoint, 
   LeadRect destinationRect, 
   int opacity 
)

__init__(self,sourceImage,sourcePoint,destinationRect,opacity) # Overloaded constructor

Parameters

sourceImage
RasterImage object that references the source image.

sourcePoint
LeadPoint structure that contains the origin of the source rectangle. The width and height are the same width and height for the destination rectangle.

destinationRect
LeadRect structure that contains the destination rectangle.

opacity
Opacity value used when combining the areas from the source and affected images. This value is between 0 and 255.

Example

Run the AlphaBlendCommand on an image.

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void AlphaBlendConstructorExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); 
 
   // Prepare the command 
   RasterImage srcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Image3.cmp"), 24, CodecsLoadByteOrder.Bgr, 1, 1); 
   AlphaBlendCommand command = new AlphaBlendCommand(srcImage, new LeadPoint(0, 0), new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height), 128); 
   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.effects.AlphaBlendCommand; 
 
 
public void alphaBlendConstructorExample() { 
    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, "Master.jpg")); 
 
    // Prepare the command 
    RasterImage srcImage = codecs.load(combine(LEAD_VARS_IMAGES_DIR, "Image2.cmp"), 24, CodecsLoadByteOrder.BGR, 1, 
            1); 
    AlphaBlendCommand command = new AlphaBlendCommand(srcImage, new LeadPoint(0, 0), 
            new LeadRect(image.getWidth() / 8, image.getHeight() / 8, image.getWidth(), image.getHeight()), 128); 
 
    int change = command.run(image); 
    assertTrue(change != RasterImageChangedFlags.NONE); 
 
    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")); 
}

Requirements

Target Platforms

Reference

AlphaBlendCommand Class

AlphaBlendCommand Members

Overload List

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Effects Assembly

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Namespaces

Leadtools.ImageProcessing.Effects Namespace

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