BorderRemove Event

Summary

Handles border information that will be removed.

Syntax

Objective-C

C++/CLI

Java

Python

public event EventHandler<BorderRemoveCommandEventArgs> BorderRemove

typedef void (^LTBorderRemoveCommandStatus)(LTRasterImage *image, LTBorderRemoveCommandEventArgs *args, LTRemoveStatus *status) 
 
- (BOOL)run:(LTRasterImage *)image 
   progress:(nullable LTRasterCommandProgress)progressHandler 
     status:(nullable LTBorderRemoveCommandStatus)borderRemoveStatus 
      error:(NSError **)error

public void addBorderRemoveCommandListener(BorderRemoveCommandListener listener) 
public void removeBorderRemoveCommandListener(BorderRemoveCommandListener listener)

public: 
event EventHandler<BorderRemoveCommandEventArgs^>^ BorderRemove

def BorderRemove(sender,e): # sender: BorderRemoveCommand e: BorderRemoveCommandEventArgs

Event Data

The event handler receives an argument of type BorderRemoveCommandEventArgs containing data related to this event. The following BorderRemoveCommandEventArgs properties provide information specific to this event.

Property	Description
Border	Gets a flag that indicates which border is being processed.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
 
public void BorderRemoveCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   BorderRemoveCommand command = new BorderRemoveCommand(); 
   command.BorderRemove += new EventHandler<BorderRemoveCommandEventArgs>(command_BorderRemove_S1); 
   command.Border = BorderRemoveBorderFlags.All; 
   command.Flags = BorderRemoveCommandFlags.UseVariance; 
   command.Percent = 20; 
   command.Variance = 3; 
   command.WhiteNoiseLength = 9; 
 
   command.Run(image); 
 
} 
 
private void command_BorderRemove_S1(object sender, BorderRemoveCommandEventArgs e) 
{ 
   string Border; 
 
   switch (e.Border) 
   { 
      case BorderRemoveBorderFlags.Top: 
         Border = "Top"; 
         break; 
      case BorderRemoveBorderFlags.Left: 
         Border = "Left"; 
         break; 
      case BorderRemoveBorderFlags.Right: 
         Border = "Right"; 
         break; 
      case BorderRemoveBorderFlags.Bottom: 
         Border = "Bottom"; 
         break; 
      default: 
         Border = ""; 
         break; 
   } 
   MessageBox.Show("Bounds " + "( " + e.BoundingRectangle.Left + ", " + e.BoundingRectangle.Top + ") - " + "( " + e.BoundingRectangle.Right + ", " + e.BoundingRectangle.Bottom + ")" + "\n Border " + Border.ToString()); 
   e.Status = RemoveStatus.Remove; 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
import java.beans.EventHandler; 
import java.io.File; 
import java.io.IOException; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.*; 
import leadtools.imageprocessing.color.*; 
 
 
public void borderRemoveCommandExample() { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.setThrowExceptionsOnInvalidImages(true); 
 
   RasterImage image = codecs.load(combine(LEAD_VARS_IMAGES_DIR, 
         "clean.tif"), 1, CodecsLoadByteOrder.BGR, 1, 1); 
 
   // Prepare the command 
   BorderRemoveCommand command = new BorderRemoveCommand(); 
   command.addBorderRemoveCommandListener(command_BorderRemove_S1); 
   command.setBorder(BorderRemoveBorderFlags.ALL.getValue()); 
   command.setFlags(BorderRemoveCommandFlags.USE_VARIANCE.getValue()); 
   command.setPercent(20); 
   command.setVariance(3); 
   command.setWhiteNoiseLength(9); 
 
   command.run(image); 
 
   System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "clean.tif")); 
   assertTrue(new File(combine(LEAD_VARS_IMAGES_DIR, "clean.tif")).exists()); 
 
} 
 
BorderRemoveCommandListener command_BorderRemove_S1 = new BorderRemoveCommandListener() { 
 
   @Override 
   public void onBorderRemoveEvent(BorderRemoveCommandEvent e) { 
      String Border; 
 
      switch (e.getBorder()) { 
 
         // Top 
         case 0x00000004: 
            Border = "Top"; 
            break; 
 
         // Left 
         case 0x00000001: 
            Border = "Left"; 
            break; 
 
         // Right 
         case 0x00000002: 
            Border = "Right"; 
            break; 
 
         // Bottom 
         case 0x00000008: 
            Border = "Bottom"; 
            break; 
 
         default: 
            Border = ""; 
            break; 
 
      } 
 
      System.out.println("Bounds " + "( " + e.getBoundingRectangle().getLeft() + ", " 
            + e.getBoundingRectangle().getTop() + ") - " + "( " + e.getBoundingRectangle().getRight() + ", " 
            + e.getBoundingRectangle().getBottom() + ")" + "\n Border " + Border); 
      e.setStatus(RemoveStatus.REMOVE); 
 
   } 
 
};

Requirements

Target Platforms

Reference

BorderRemoveCommand Class

BorderRemoveCommand Members

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Leadtools.ImageProcessing.Core Assembly

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