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LEADTOOLS (Leadtools assembly)
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ResizeCommand Class








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.
Object Model
Syntax
public class ResizeCommand : RasterCommand, IRasterCommand  
'Declaration
 

Public Class ResizeCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
'Usage
 

Dim instance As ResizeCommand
public sealed class ResizeCommand : IRasterCommand  
@interface LTResizeCommand : LTRasterCommand
public class ResizeCommand extends RasterCommand
function Leadtools.ImageProcessing.ResizeCommand()
public ref class ResizeCommand : public RasterCommand, IRasterCommand
Remarks

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

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

This command does not change the source image passed to the 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.

Example

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

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

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

      
public void ResizeCommandExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = Path.Combine(ImagesPath.Path, "Image1.cmp");
   string destFileName = Path.Combine(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();
   codecs.Dispose();
}
RasterCommandExamples.prototype.ResizeCommandExample = function () {
    Tools.SetLicense();
    with (Leadtools) {
        with (Leadtools.Codecs) {
            with (Leadtools.ImageProcessing) {
                var codecs = new RasterCodecs();

                var srcFileName = "Assets\\Image1.cmp";
                var destFileName = "ResizeCommand.bmp";
                var srcImage;
                var destImage;
                // Load the source image from disk
                return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
                    return codecs.loadAsync(LeadStreamFactory.create(loadFile))
                }).then(function (img) {
                    srcImage = img;

                    // Create the destination image
                    destImage = new RasterImage(
                       RasterMemoryFlags.conventional,
                       100,
                       100,
                       srcImage.bitsPerPixel,
                       srcImage.order,
                       srcImage.viewPerspective,
                       srcImage.getPalette());

                    // Resize the source image into the destination image
                    var command = new ResizeCommand();
                    command.destinationImage = destImage;
                    command.flags = RasterSizeFlags.bicubic;
                    command.run(srcImage);

                    // Save it to disk
                    return Tools.AppLocalFolder().createFileAsync(destFileName)
                })
            .then(function (saveFile) {
                return codecs.saveAsync(destImage, LeadStreamFactory.create(saveFile), RasterImageFormat.bmp, 24)
            })
            .then(function () {

                // Clean Up
                srcImage.close();
                destImage.close();
            });
            }
        }
    }
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;

      
public async Task ResizeCommandExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = @"Assets\Image1.cmp";
   string destFileName = @"ResizeCommand.bmp";

   // Load the source image from disk
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage srcImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Create the destination image
   RasterImage destImage = new RasterImage(
      RasterMemoryFlags.Conventional,
      100,
      100,
      srcImage.BitsPerPixel,
      srcImage.Order,
      srcImage.ViewPerspective,
      srcImage.GetPalette());

   // 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
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(destImage, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

   // Clean Up
   srcImage.Dispose();
   destImage.Dispose();
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Examples;
using Leadtools.ImageProcessing;
using Leadtools.Windows.Media;

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();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Media

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
Requirements

Target Platforms

See Also

Reference

ResizeCommand Members
Leadtools.ImageProcessing Namespace

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