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ResizeCommand Class
See Also  Members   Example 
Leadtools.ImageProcessing Namespace : ResizeCommand Class



Resizes the image from an existing image, and puts the resized image into a destination image, leaving the original image intact.

Object Model


Syntax

Visual Basic (Declaration)  
Public Class ResizeCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
Visual Basic (Usage) Copy Code
Dim instance As ResizeCommand
C#  
public class ResizeCommand : RasterCommand, IRasterCommand 
C++/CLI  
public ref class ResizeCommand : public RasterCommand, IRasterCommand 

Example

This example will load an image then resize into an existing smaller image

Visual Basic Copy Code
Public Sub ResizeCommandExample()
 RasterCodecs.Startup()
 Dim codecs As RasterCodecs = New RasterCodecs()

 Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"
 Dim destFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "ResizeCommand.bmp"

 ' Load the source image from disk
 Dim srcImage As RasterImage = codecs.Load(srcFileName)

 ' Create the destination image
 Dim destImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, 100, 100, srcImage.BitsPerPixel, srcImage.Order, srcImage.ViewPerspective, srcImage.GetPalette(), IntPtr.Zero, 0)

 ' Resize the source image into the destination image
 Dim command As ResizeCommand = New ResizeCommand()
 command.DestinationImage = destImage
 command.Flags = RasterSizeFlags.Bicubic
 command.Run(srcImage)

 ' Save it to disk
 codecs.Save(destImage, destFileName, RasterImageFormat.Bmp, 24)

 ' Clean Up
 srcImage.Dispose()
 destImage.Dispose()
 RasterCodecs.Shutdown()
      End Sub
C# Copy Code
public void ResizeCommandExample() 
{ 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"; 
   string destFileName = LeadtoolsExamples.Common.ImagesPath.Path + "ResizeCommand.bmp"; 
 
   // Load the source image from disk 
   RasterImage srcImage = codecs.Load(srcFileName); 
 
   // Create the destination image 
   RasterImage destImage = new RasterImage( 
      RasterMemoryFlags.Conventional, 
      100, 
      100, 
      srcImage.BitsPerPixel, 
      srcImage.Order, 
      srcImage.ViewPerspective, 
      srcImage.GetPalette(), 
      IntPtr.Zero, 
      0); 
 
   // Resize the source image into the destination image 
   ResizeCommand command = new ResizeCommand(); 
   command.DestinationImage = destImage; 
   command.Flags = RasterSizeFlags.Bicubic; 
   command.Run(srcImage); 
 
   // Save it to disk 
   codecs.Save(destImage, destFileName, RasterImageFormat.Bmp, 24); 
 
   // Clean Up 
   srcImage.Dispose(); 
   destImage.Dispose(); 
   RasterCodecs.Shutdown(); 
}

Remarks

The ResizeCommand command works by resizing the image data passed to the RasterCommand.Run method into the image passed to the DestinationImage property.

The destination image must be intialized with the correct RasterImage.Width and RasterImage.Height of the new, resized image.

This command does not change the source image passed to the RasterCommand.Run method. If you want to resize an image without creating a new version, use the SizeCommand.

For more information, refer to Introduction to Image Processing With LEADTOOLS.

Inheritance Hierarchy

System.Object
   Leadtools.ImageProcessing.RasterCommand
      Leadtools.ImageProcessing.ResizeCommand

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also