CropCommand Class

Summary

Crops the image, resulting in an image that is the size of the specified rectangle.

Syntax

Objective-C

C++

Java

public class CropCommand : RasterCommand

Public Class CropCommand  
   Inherits RasterCommand

@interface LTCropCommand : LTRasterCommand

public class CropCommand extends RasterCommand

public ref class CropCommand : public RasterCommand

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

This example trims 100 pixels off of each side of an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using LeadtoolsExamples.Common; 
 
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(); 
}

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

c#[Silverlight C# Example] 
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(); 
} 
vb[Silverlight VB Example] 
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

Reference

CropCommand Members

Leadtools.ImageProcessing Namespace

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Help Version 20.0.2020.4.2

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies