Visual Basic (Declaration) | |
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Public Class FeatherAlphaBlendCommand Inherits Leadtools.ImageProcessing.RasterCommand Implements IRasterCommand |
Visual Basic (Usage) | Copy Code |
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Dim instance As FeatherAlphaBlendCommand |
C# | |
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public class FeatherAlphaBlendCommand : Leadtools.ImageProcessing.RasterCommand, IRasterCommand |
C++/CLI | |
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public ref class FeatherAlphaBlendCommand : public Leadtools.ImageProcessing.RasterCommand, IRasterCommand |
Run the Leadtools.ImageProcessing.Effects.FeatherAlphaBlendCommand on an image.
Visual Basic | Copy Code |
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Public Sub FeatherAlphaBlendCommandExample() ' Load an image Dim codecs As RasterCodecs = New RasterCodecs() Dim backgroundImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")) Dim sourceImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "LittleGFlyingAlpha.png"), 32, CodecsLoadByteOrder.Bgr, 1, 1) Dim command As FeatherAlphaBlendCommand = New FeatherAlphaBlendCommand() command.DestinationRectangle = New LeadRect(0, 0, sourceImage.Width, sourceImage.Height) command.MaskImage = sourceImage.CreateAlphaImage() command.SourceImage = sourceImage command.SourcePoint = New LeadPoint(0, 0) command.Run(backgroundImage) codecs.Save(backgroundImage, 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 |
C# | Copy Code |
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public void FeatherAlphaBlendCommandExample() { // Load an image RasterCodecs codecs = new RasterCodecs(); RasterImage backgroundImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")); RasterImage sourceImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "LittleGFlyingAlpha.png"), 32, CodecsLoadByteOrder.Bgr, 1, 1); FeatherAlphaBlendCommand command = new FeatherAlphaBlendCommand(); command.DestinationRectangle = new LeadRect(0, 0, sourceImage.Width, sourceImage.Height); command.MaskImage = sourceImage.CreateAlphaImage(); command.SourceImage = sourceImage; command.SourcePoint = new LeadPoint(0, 0); command.Run(backgroundImage); codecs.Save(backgroundImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | Copy Code |
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public void FeatherAlphaBlendCommandExample(RasterImage image, RasterImage maskImage, RasterImage sourceImage, Stream outStream) { FeatherAlphaBlendCommand command = new FeatherAlphaBlendCommand(); command.DestinationRectangle = new LeadRect(0, 0, image.Width / 2, image.Height / 2); command.MaskImage = maskImage; command.SourcePoint = new LeadPoint(image.Width / 2, image.Height / 2); command.SourceImage = sourceImage; command.Run(image); // Save result image RasterCodecs codecs = new RasterCodecs(); codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); image.Dispose(); maskImage.Dispose(); sourceImage.Dispose(); } |
SilverlightVB | Copy Code |
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Public Sub FeatherAlphaBlendCommandExample(ByVal image As RasterImage, ByVal maskImage As RasterImage, ByVal sourceImage As RasterImage, ByVal outStream As Stream)
Dim command As FeatherAlphaBlendCommand = New FeatherAlphaBlendCommand()
command.DestinationRectangle = New LeadRect(0, 0, image.Width / 2, image.Height / 2)
command.MaskImage = maskImage
command.SourcePoint = New LeadPoint(image.Width / 2, image.Height / 2)
command.SourceImage = sourceImage
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
image.Dispose()
maskImage.Dispose()
sourceImage.Dispose()
End Sub |
- To combine two images with a fixed opacity, use the AlphaBlendCommand.
- The FeatherAlphaBlendCommand achieves feathering between two images by using variable opacity values, obtained from the fade mask referenced by MaskImage. Use the MaskSourcePoint to specify a region of the mask image, these values are the coordinates of the origin of the mask rectangle.
- To create an image that contains a fade mask, use FadedMaskCommand command.
- 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 signed data images.
- This command does not support 32-bit grayscale images.
System.Object
Leadtools.ImageProcessing.RasterCommand
Leadtools.ImageProcessing.Effects.FeatherAlphaBlendCommand
Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)
Reference
FeatherAlphaBlendCommand MembersLeadtools.ImageProcessing.Effects Namespace
Introduction to Image Processing With LEADTOOLS
CombineCommand Class
AlphaBlendCommand Class
TextureAlphaBlendCommand Class
Leadtools.ImageProcessing.SpecialEffects.BricksTextureCommand
Leadtools.ImageProcessing.SpecialEffects.CanvasCommand
DisplacementCommand Class
Leadtools.ImageProcessing.SpecialEffects.FragmentCommand
Leadtools.ImageProcessing.SpecialEffects.VignnetCommand