UnderlayImage Property

Summary

Gets or sets an RasterImage object that references the image to be used as the underlying image.

Syntax

C++/CLI

Python

public RasterImage UnderlayImage { get; set; }

public: 
property RasterImage^ UnderlayImage { 
   RasterImage^ get(); 
   void set (    RasterImage^ ); 
}

UnderlayImage # get and set (TextureAlphaBlendCommand)

Property Value

RasterImage object that references the image to be used as the underlying image. The command will use this image to underlay the mask image. You could ignore this property effect by passing null.

Example

Run the TextureAlphaBlendCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
 
public void UnderlayImagePropertyExample() 
{ 
   // 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"), 4, CodecsLoadByteOrder.Bgr, 1, 1); 
 
   //Load the fade mask image. 
   RasterImage maskImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\FadeMask.bmp"), 4, CodecsLoadByteOrder.Bgr, 1, 1); 
 
   TextureAlphaBlendCommand command = new TextureAlphaBlendCommand(); 
   command.DestinationRectangle = new LeadRect(image.Width / 2 - maskImage.Width / 2, image.Height / 2 - maskImage.Height / 2, maskImage.Width, maskImage.Height); 
   command.MaskImage = maskImage; 
   command.Opacity = 100; 
   command.SourceImage = srcImage; 
   command.SourcePoint = new LeadPoint(0, 0); 
   command.UnderlayImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"), 4, CodecsLoadByteOrder.Bgr, 1, 1); 
   command.UnderlayOffset = new LeadPoint(150, 10); 
   // Combine ImageSource with the affected image, with MaskImage and a 100 opacity. 
   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"; 
}

Requirements

Target Platforms

Reference

TextureAlphaBlendCommand Class

TextureAlphaBlendCommand Members

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Effects Assembly

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Getting Started

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Leadtools.ImageProcessing.Effects Namespace

Assemblies