LEADTOOLS画像処理(Leadtools.ImageProcessing.Effectsアセンブリ)

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AlphaBlendCommandクラス








メンバ 
特定の不透明度値を用いて2つのイメージから画像データを結合します。
オブジェクトモデル
構文
'Declaration
 
Public Class AlphaBlendCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As AlphaBlendCommand
public sealed class AlphaBlendCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTAlphaBlendCommand : LTRasterCommand
public class AlphaBlendCommand extends RasterCommand
function Leadtools.ImageProcessing.Effects.AlphaBlendCommand()
解説
詳細については、「LEADTOOLSによる画像処理入門」を参照してください。
サンプル

imageの上でAlphaBlendCommandを実行します。

Copy Code  
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

   
Public Sub AlphaBlendCommandExample()
   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
   SrcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\image3.cmp"), 4, CodecsLoadByteOrder.Bgr, 1, 1)

   Dim command As AlphaBlendCommand = New AlphaBlendCommand
   'Combine SrcImage with image, with half opacity.
   command.DestinationRectangle = New LeadRect(leadImage.Width \ 8, leadImage.Height \ 8, leadImage.Width, leadImage.Height)
   command.SourceImage = SrcImage
   command.Opacity = 128
   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.Effects;

      
public void AlphaBlendCommandExample()
{
   // 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);

   AlphaBlendCommand command = new AlphaBlendCommand();
   //Combine SrcImage with image, with half opacity.
   command.DestinationRectangle = new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = SrcImage;
   command.Opacity = 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:\Users\Public\Documents\LEADTOOLS Images";
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing;

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

   // Prepare the command
   srcFileName = @"Assets\Image3.cmp";
   loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage SrcImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   AlphaBlendCommand command = new AlphaBlendCommand();
   //Combine SrcImage with image, with half opacity.
   command.DestinationRectangle = LeadRectHelper.Create(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = SrcImage;
   command.Opacity = 128;
   command.Run(image);
   //Save as BMP
   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.Examples;

public void AlphaBlendCommandExample(RasterImage image, RasterImage srcImage, Stream outStream)
{
   // Prepare the command
   AlphaBlendCommand command = new AlphaBlendCommand();
   //Combine SrcImage with image, with half opacity.
   command.DestinationRectangle = new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height);
   command.SourceImage = srcImage;
   command.Opacity = 128;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
   srcImage.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

Public Sub AlphaBlendCommandExample(ByVal image As RasterImage, ByVal srcImage As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As AlphaBlendCommand = New AlphaBlendCommand()
   'Combine SrcImage with image, with half opacity.
   command.DestinationRectangle = New LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height)
   command.SourceImage = srcImage
   command.Opacity = 128
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
   srcImage.Dispose()
End Sub
必要条件

ターゲットプラットホーム

参照

参照

AlphaBlendCommandメンバ
Leadtools.ImageProcessing.Effects名前空間
LEADTOOLSによる画像処理入門
CombineCommandクラス
FeatherAlphaBlendCommandクラス
TextureAlphaBlendCommandクラス
Leadtools.ImageProcessing.SpecialEffects.BricksTextureCommand
Leadtools.ImageProcessing.SpecialEffects.CanvasCommand
DisplacementCommandクラス
Leadtools.ImageProcessing.SpecialEffects.FragmentCommand
Leadtools.ImageProcessing.SpecialEffects.VignnetCommand