LEADTOOLS Image Processing (Leadtools.ImageProcessing.Effects assembly)

OffsetCommand Class

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Example 







Members 
Shifts the image data horizontally and vertically.
Object Model
Syntax
'Declaration
 
Public Class OffsetCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As OffsetCommand
public sealed class OffsetCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTOffsetCommand : LTRasterCommand
public class OffsetCommand extends RasterCommand
function Leadtools.ImageProcessing.Effects.OffsetCommand()
Remarks
For more information, refer to Applying Artistic Effects.

In Silverlight and Windows Phone versions of LEADTOOLS, this image processing command will fail if the image data for the RasterImage object is stored internally using a Silverlight WriteableBitmap object. For more information, refer to Image Processing Command Limitations in Silverlight.

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

Public Sub OffsetCommandExample()
   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 OffsetCommand = New OffsetCommand
   command.HorizontalShift = leadImage.Width \ 2
   command.VerticalShift = leadImage.Height \ 2
   command.BackColor = New RasterColor(128, 128, 128)
   command.Type = OffsetCommandType.Color
   'Apply offset on the image.
   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 OffsetCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;

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

   // Prepare the command
   OffsetCommand command = new OffsetCommand();
   command.HorizontalShift = image.Width / 2;
   command.VerticalShift = image.Height / 2;
   command.BackColor = new RasterColor(128, 128, 128);
   command.Type = OffsetCommandType.Color;
   //Apply offset on the image.
   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 OffsetCommandExample()
{
   // 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
   OffsetCommand command = new OffsetCommand();
   command.HorizontalShift = image.Width / 2;
   command.VerticalShift = image.Height / 2;
   command.BackColor = RasterColorHelper.Create(128, 128, 128);
   command.Type = OffsetCommandType.Color;
   //Apply offset on the image.
   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 OffsetCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   OffsetCommand command = new OffsetCommand();
   command.HorizontalShift = image.Width / 2;
   command.VerticalShift = image.Height / 2;
   command.BackColor = new RasterColor(128, 128, 128);
   command.Type = OffsetCommandType.Color;
   //Apply offset on the image.
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24);
   image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

Public Sub OffsetCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As OffsetCommand = New OffsetCommand()
   command.HorizontalShift = image.Width / 2
   command.VerticalShift = image.Height / 2
   command.BackColor = New RasterColor(128, 128, 128)
   command.Type = OffsetCommandType.Color
   'Apply offset on the image.
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub
Requirements

Target Platforms

See Also

Reference

OffsetCommand Members
Leadtools.ImageProcessing.Effects Namespace
Applying Artistic Effects
EmbossCommand Class
Leadtools.ImageProcessing.SpecialEffects.ShadowCommand
Leadtools.ImageProcessing.Color.ChangeHueSaturationIntensityCommand
Leadtools.ImageProcessing.Color.ColorReplaceCommand
Leadtools.ImageProcessing.Color.ColorThresholdCommand
Leadtools.ImageProcessing.Core.DiscreteFourierTransformCommand
DirectionEdgeStatisticalCommand Class
Leadtools.ImageProcessing.Core.FastFourierTransformCommand
Leadtools.ImageProcessing.Core.FrequencyFilterCommand
Leadtools.ImageProcessing.Core.FrequencyFilterMaskCommand
Leadtools.ImageProcessing.Core.FourierTransformDisplayCommand
StatisticsInformationCommand Class
FeretsDiameterCommand Class
ObjectInformationCommand Class
RegionContourPointsCommand Class
GetRegionPerimeterLength Method
Leadtools.ImageProcessing.Color.MathematicalFunctionCommand
Leadtools.ImageProcessing.Color.SegmentCommand
Leadtools.ImageProcessing.Core.SubtractBackgroundCommand
UserFilterCommand Class

 

 


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