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TextureAlphaBlendCommand Constructor(RasterImage,LeadPoint,LeadRect,int,RasterImage,RasterImage,LeadPoint)

Summary

Initializes a new TextureAlphaBlendCommand class object with explicit parameters.

Syntax
C#
VB
C++
Public Function New( _ 
   ByVal sourceImage As RasterImage, _ 
   ByVal sourcePoint As LeadPoint, _ 
   ByVal destinationRectangle As LeadRect, _ 
   ByVal opacity As Integer, _ 
   ByVal maskImage As RasterImage, _ 
   ByVal underlayImage As RasterImage, _ 
   ByVal underlayOffset As LeadPoint _ 
) 

Parameters

sourceImage
RasterImage object that references the source image.

sourcePoint
LeadPoint structure that contains the origin of the source rectangle.

destinationRectangle
LeadRect structure that contains the destination rectangle.

opacity
Opacity value used when combining the areas from the result of feathering and destination images. Valid values range from 0 to 255.

maskImage
RasterImage object that references the fade mask, if you want to combine the two images just with opacity set this parameter to null.

underlayImage
RasterImage 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 parameter effect by passing null.

underlayOffset
References the underlay image offset with respect to the destination image. The command will use this point to calculate the parts of the underlay image that will be applied to the mask image. Using this point gives the user the ability to provide the feel of continuous texture when applying this command to neighboring parts inside the destination image using the same or different mask. If underlayImage is null also set this parameter to null.

Example

Run the TextureAlphaBlendCommand on an image.

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void TextureAlphaBlendConstructorExample() 
{ 
   // 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); 
 
   RasterImage underlayImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"), 4, CodecsLoadByteOrder.Bgr, 1, 1); 
 
   LeadRect rect = new LeadRect(image.Width / 2 - maskImage.Width / 2, image.Height / 2 - maskImage.Height / 2, maskImage.Width, maskImage.Height); 
 
   TextureAlphaBlendCommand command = new TextureAlphaBlendCommand(srcImage, new LeadPoint(0, 0), rect, 100, maskImage, underlayImage, 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:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub TextureAlphaBlendConstructorExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")) 
 
   ' Prepare the command 
   Dim srcImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\image3.cmp"), 4, CodecsLoadByteOrder.Bgr, 1, 1) 
   'Load the fade mask image. 
   Dim maskImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\FadeMask.bmp"), 4, CodecsLoadByteOrder.Bgr, 1, 1) 
   Dim underlayImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "cannon.jpg"), 4, CodecsLoadByteOrder.Bgr, 1, 1) 
 
   Dim rect As LeadRect = New LeadRect(leadImage.Width \ 2 - maskImage.Width \ 2, leadImage.Height \ 2 - maskImage.Height \ 2, maskImage.Width, maskImage.Height) 
 
   Dim command As TextureAlphaBlendCommand = New TextureAlphaBlendCommand(srcImage, New LeadPoint(0, 0), rect, 100, maskImage, underlayImage, New LeadPoint(150, 10)) 
   ' Combine ImageSource with the affected image, with MaskImage and a 100 opacity. 
   command.Run(leadImage) 
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 
Requirements

Target Platforms

Help Version 20.0.2019.11.25
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Leadtools.ImageProcessing.Effects Assembly