LEADTOOLS (Leadtools assembly)

CropCommand Class

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Example 







Members 
Crops the image, resulting in an image that is the size of the specified rectangle.
Object Model
Syntax
public class CropCommand : RasterCommand, IRasterCommand  
'Declaration
 
Public Class CropCommand 
   Inherits RasterCommand
   Implements IRasterCommand 
'Usage
 
Dim instance As CropCommand
public sealed class CropCommand : IRasterCommand  
@interface LTCropCommand : LTRasterCommand
public class CropCommand extends RasterCommand
function Leadtools.ImageProcessing.CropCommand()
public ref class CropCommand : public RasterCommand, IRasterCommand  
Remarks

If a region is defined for the image, the region is also cropped if necessary.

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

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

  Public Sub CropCommandExample()
   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, "CropCommand.bmp")

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

   ' Crop 100 pixels from each side of the image
   Dim command As CropCommand = New CropCommand()
   command.Rectangle = New LeadRect(100, 100, image.Width - 100, image.Height - 100)
   command.Run(image)

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

   ' Clean Up
   image.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 CropCommandExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName = Path.Combine(ImagesPath.Path, "Image1.cmp");
   string destFileName = Path.Combine(ImagesPath.Path, "CropCommand.bmp");

   // Load the source image from disk
   RasterImage image = codecs.Load(srcFileName);

   // Crop 100 pixels from each side of the image
   CropCommand command = new CropCommand();
   command.Rectangle = new LeadRect(
      100,
      100,
      image.Width - 100,
      image.Height - 100);
   command.Run(image);

   // Save it to disk
   codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);

   // Clean Up
   image.Dispose();
   codecs.Dispose();
}
RasterCommandExamples.prototype.CropCommandExample = function () {
    Tools.SetLicense();
    with (Leadtools) {
        with (Leadtools.Codecs) {
            with (Leadtools.ImageProcessing) {
                var codecs = new RasterCodecs();

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

                    // Crop 100 pixels from each side of the image
                    var command = new CropCommand();
                    command.rectangle = LeadRectHelper.create(
                       100,
                       100,
                       image.width - 100,
                       image.height - 100);
                    command.run(image);

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

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

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

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

   // Crop 100 pixels from each side of the image
   CropCommand command = new CropCommand();
   command.Rectangle = LeadRectHelper.Create(
      100,
      100,
      image.Width - 100,
      image.Height - 100);
   command.Run(image);

   // Save it to disk
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

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

public void CropCommandExample(RasterImage image, Stream destStream)
{
   RasterCodecs codecs = new RasterCodecs();
   // Crop 100 pixels from each side of the image
   CropCommand command = new CropCommand();
   command.Rectangle = new LeadRect(
      100,
      100,
      image.Width - 100,
      image.Height - 100);
   command.Run(image);

   // Save it to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 24);

   // Clean Up
   image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.Windows.Media

Public Sub CropCommandExample(ByVal image As RasterImage, ByVal destStream As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' Crop 100 pixels from each side of the image
   Dim command As CropCommand = New CropCommand()
   command.Rectangle = New LeadRect(100, 100, image.Width - 100, image.Height - 100)
   command.Run(image)

   ' Save it to disk
   codecs.Save(image, destStream, RasterImageFormat.Bmp, 24)

   ' Clean Up
   image.Dispose()
End Sub
Requirements

Target Platforms

See Also

Reference

CropCommand Members
Leadtools.ImageProcessing Namespace

 

 


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