MaximumBlackPercent Property

Summary

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

Syntax

Objective-C

C++/CLI

Java

Python

public int MaximumBlackPercent { get; set; }

@property (nonatomic, assign) NSInteger maximumBlackPercent;

public int getMaximumBlackPercent(); 
public void setMaximumBlackPercent( 
   int intValue 
);

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

MaximumBlackPercent # get and set (InvertedTextCommand)

Property Value

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

Example

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:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

InvertedTextCommand Class

InvertedTextCommand Members

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Help Version 22.0.2023.11.1

Leadtools.ImageProcessing.Core Assembly

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Getting Started

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Leadtools.ImageProcessing.Core Namespace

Assemblies