VignnetCommand Class

Visual Basic
C#
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public class VignnetCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration
 
Public Class VignnetCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage
 
Dim instance As VignnetCommand

public sealed class VignnetCommand : Leadtools.ImageProcessing.IRasterCommand

function Leadtools.ImageProcessing.SpecialEffects.VignnetCommand()

public ref class VignnetCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

This method can be used to draw a circle, ellipse, rectangle or square to create a vignette shape and then a color is feathered to the image, filling either the inside or the outside of the vignette shape.
This method 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 method does not support signed data images.
This command does not support 32-bit grayscale images.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.SpecialEffects

Public Sub VignnetCommandExample()
   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 command As VignnetCommand = New VignnetCommand
   command.Origin = New LeadPoint(leadImage.Width \ 2, leadImage.Height \ 2)
   command.Fading = 50
   command.FadingRate = 100
   command.Width = 20
   command.Height = 20
   command.VignetteColor = New RasterColor(0, 0, 0)
   command.Flags = VignnetCommandFlags.Ellipse Or VignnetCommandFlags.Fillin
   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

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.SpecialEffects;

public void VignnetCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;

   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

   // Prepare the command
   VignnetCommand command = new VignnetCommand();
   command.Origin = new LeadPoint((image.Width / 2), (image.Height / 2));
   command.Fading        = 50;
   command.FadingRate    = 100;
   command.Width         = 20;
   command.Height        = 20;
   command.VignetteColor = new RasterColor(0,0,0);
   command.Flags         = VignnetCommandFlags.Ellipse | VignnetCommandFlags.Fillin;

   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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.SpecialEffects;

[TestMethod]
public async Task VignnetCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   VignnetCommand command = new VignnetCommand();
   command.Origin = LeadPointHelper.Create((image.Width / 2), (image.Height / 2));
   command.Fading        = 50;
   command.FadingRate    = 100;
   command.Width         = 20;
   command.Height        = 20;
   command.VignetteColor = RasterColorHelper.Create(0,0,0);
   command.Flags         = VignnetCommandFlags.Ellipse | VignnetCommandFlags.Fillin;

   command.Run(image);

   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);
}

Target Platforms

Reference

VignnetCommand Members
Leadtools.ImageProcessing.SpecialEffects Namespace
Leadtools.ImageProcessing.Effects.CombineCommand
Leadtools.ImageProcessing.Effects.FeatherAlphaBlendCommand
Leadtools.ImageProcessing.Effects.TextureAlphaBlendCommand