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ResizeCommand Class
See Also  Members  
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. Supported in Silverlight, Windows Phone 7

Object Model

ResizeCommand ClassRasterImage Class

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 BasicCopy Code
Public Sub ResizeCommandExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "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()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void ResizeCommandExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "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();
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
public void ResizeCommandExample(RasterImage srcImage, Stream destStream)
{
   RasterCodecs codecs = new RasterCodecs();
   // Create the destination image
   RasterImage destImage = new RasterImage(
      RasterMemoryFlags.Conventional,
      100,
      100,
      srcImage.BitsPerPixel,
      srcImage.Order,
      srcImage.ViewPerspective,
      srcImage.GetPalette(),
      null,
      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, destStream, RasterImageFormat.Bmp, 24);

   // Clean Up
   srcImage.Dispose();
   destImage.Dispose();
}
SilverlightVBCopy Code
Public Sub ResizeCommandExample(ByVal srcImage As RasterImage, ByVal destStream As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' Create the destination image
   Dim destImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, 100, 100, srcImage.BitsPerPixel, srcImage.Order, srcImage.ViewPerspective, srcImage.GetPalette(), Nothing, 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, destStream, RasterImageFormat.Bmp, 24)

   ' Clean Up
   srcImage.Dispose()
   destImage.Dispose()
End Sub

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: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7

See Also