Variance Property

Summary

Gets or sets the amount of variance tolerated in the border.

Syntax

Objective-C

C++/CLI

Java

Python

public int Variance { get; set; }

@property (nonatomic, assign) NSInteger variance;

public int getVariance(); 
public void setVariance( 
   int intValue 
);

public: 
property int Variance { 
   int get(); 
   void set (    int ); 
}

Variance # get and set (BorderRemoveCommand)

Property Value

Amount of variance tolerated in the border. If the border varies significantly in thickness, you should use a higher value for Variance. Range is 0 to 10.

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

Download our FREE evaluation

Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies