MinimumBlackPercent Property

Summary

Gets or sets the minimum percent of total pixels in an inverted text area that must be black.

Syntax

Objective-C

C++/CLI

Java

Python

public int MinimumBlackPercent { get; set; }

@property (nonatomic, assign) NSInteger minimumBlackPercent;

public int getMinimumBlackPercent(); 
public void setMinimumBlackPercent( 
   int intValue 
);

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

MinimumBlackPercent # get and set (InvertedTextCommand)

Property Value

The minimum percent of total pixels in an inverted text area that must be black. Areas with a lower percent of black pixels are not considered.

Example

Java

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void InvertedTextCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif")); 
 
   // Prepare the command 
   InvertedTextCommand command = new InvertedTextCommand(); 
   command.InvertedText += new EventHandler<InvertedTextCommandEventArgs>(InvertedTextEvent_S1); 
   command.Flags = InvertedTextCommandFlags.UseDpi; 
   command.MaximumBlackPercent = 95; 
   command.MinimumBlackPercent = 70; 
   command.MinimumInvertHeight = 500; 
   command.MinimumInvertWidth = 5000; 
 
   command.Run(image); 
 
} 
 
private void InvertedTextEvent_S1(object sender, InvertedTextCommandEventArgs e) 
{ 
 
   MessageBox.Show("Size " + "( " + e.BoundingRectangle.Left + ", " + e.BoundingRectangle.Top + ") - " + "( " + e.BoundingRectangle.Right + ", " + e.BoundingRectangle.Bottom + ")" + 
      "\n Black Count " + e.BlackCount.ToString() + 
      "\n White Count " + e.WhiteCount.ToString()); 
   e.Status = RemoveStatus.Remove; 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

 
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.*; 
 
 
public void invertedTextCommandExample() { 
    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")); 
 
    // Prepare the command 
    InvertedTextCommand command = new InvertedTextCommand(); 
    command.addInvertedTextCommandListener(invertedTextEvent_S1); 
    command.setFlags(InvertedTextCommandFlags.USE_DPI.getValue()); 
    command.setMaximumBlackPercent(95); 
    command.setMinimumBlackPercent(70); 
    command.setMinimumInvertHeight(500); 
    command.setMinimumInvertWidth(5000); 
 
    command.run(image); 
    codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "Result.jpg"), RasterImageFormat.JPEG, 24); 
 
    assertTrue(new File(combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")).exists()); 
    System.out.println("Command run and image saved to " + combine(LEAD_VARS_IMAGES_DIR, "Result.jpg")); 
} 
 
InvertedTextCommandListener invertedTextEvent_S1 = new InvertedTextCommandListener() { 
    @Override 
    public void onInvertedTextEvent(InvertedTextCommandEvent e) { 
        System.out.println( 
                "Size ( " + e.getBoundingRectangle().getLeft() + ", " + e.getBoundingRectangle().getTop() + ") - " 
                        + "( " 
                        + e.getBoundingRectangle().getRight() + ", " + e.getBoundingRectangle().getBottom() + ")" + 
                        "\n Black Count " + e.getBlackCount() + 
                        "\n White Count " + e.getWhiteCount()); 
        e.setStatus(RemoveStatus.REMOVE); 
    } 
};

Requirements

Target Platforms

Reference

InvertedTextCommand Class

InvertedTextCommand 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