LEADTOOLS Image Processing (Leadtools.ImageProcessing.Core assembly)

AutoCropCommand Class

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Example 







Members 
Trims the current image, removing blank space around the edges.
Object Model
Syntax
'Declaration
 
Public Class AutoCropCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand 
'Usage
 
Dim instance As AutoCropCommand
public sealed class AutoCropCommand : Leadtools.ImageProcessing.IRasterCommand  
@interface LTAutoCropCommand : LTRasterCommand
public class AutoCropCommand extends RasterCommand
function Leadtools.ImageProcessing.Core.AutoCropCommand()
Remarks
For more information, refer to Introduction to Image Processing With LEADTOOLS.
Example
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Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public Sub AutoCropCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim command As AutoCropCommand = New AutoCropCommand()
   ' AutoCrop the image with 20 tolerance.
   command.Threshold = 20
   command.Run(image)

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.Core;

public void AutoCropCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;

   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

   // Prepare the command
   AutoCropCommand command   = new AutoCropCommand();
   //AutoCrop the image with 20 tolerance.
   command.Threshold         = 20;
   command.Run(image);

}

static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
function AutoCropCommandExample()
{
   var codecs = new Leadtools.Codecs.RasterCodecs();
   codecs.throwExceptionsOnInvalidImages = true;

   // Load the image
   var srcFileName = "Assets\\IMAGE1.CMP";
   return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
      return codecs.loadAsync(Leadtools.LeadStreamFactory.create(loadFile));
   }).then(function (image){
      // Prepare the command
      with (Leadtools.ImageProcessing.Core) {
         var command   = new AutoCropCommand();
         //AutoCrop the image with 20 tolerance.
         command.threshold = 20;
         command.run(image);
      }
   });
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

      
public async Task AutoCropCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   AutoCropCommand command   = new AutoCropCommand();
   //AutoCrop the image with 20 tolerance.
   command.Threshold         = 20;
   command.Run(image);

}
using Leadtools;
using Leadtools.Examples;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Core;

public void AutoCropCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   AutoCropCommand command   = new AutoCropCommand();
   //AutoCrop the image with 20 tolerance.
   command.Threshold         = 20;
   command.Run(image);
   // Save result image
   RasterCodecs codecs = new RasterCodecs();
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
   image.Dispose();
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Core

Public Sub AutoCropCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As AutoCropCommand = New AutoCropCommand()
   'AutoCrop the image with 20 tolerance.
   command.Threshold = 20
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1)
   image.Dispose()
End Sub
Requirements

Target Platforms

See Also

Reference

AutoCropCommand Members
Leadtools.ImageProcessing.Core Namespace
Introduction to Image Processing With LEADTOOLS
AutoCropRectangleCommand Class
Leadtools.ImageProcessing.CropCommand
Leadtools.ImageProcessing.CopyRectangleCommand
WindowLevelCommand Class

 

 


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