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TextBlurDetectorCommand Class

Summary

Finds in-focus and out-of-focus blocks in any image.

Syntax
C#
VB
Java
Objective-C
C++
public class TextBlurDetectorCommand : RasterCommand 
Public Class TextBlurDetectorCommand  
   Inherits RasterCommand 
@interface LTTextBlurDetectionCommand : LTRasterCommand 
public class TextBlurDetectorCommand extends RasterCommand 
public ref class TextBlurDetectorCommand : public RasterCommand   

Remarks
  • This command takes an image and divides it into many blocks, and then examines each block to determine if it is background and if it is in-focus or out-of-focus.
  • This command supports 8,12, 16-bit grayscale images and 24, 32-bit colored images.

Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
public void TextBlurDetectorCommandExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   //Load an image 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Barcode.jpg")); 
 
   //Prepare the command 
   TextBlurDetectorCommand command = new TextBlurDetectorCommand(); 
 
   //Apply  
   command.Run(image); 
 
   //Result 
   //command.InFocusBlocks contains 6 blocks 
   //command.OutOfFocusBlocks contains 2 blocks 
   //command.CombinedTextBlocks represents the boundary of all in focus blocks 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Core 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub TextBlurDetectorCommandExample() 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   'Load an image 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Barcode.jpg")) 
 
   'Prepare the command 
   Dim command As TextBlurDetectorCommand = New TextBlurDetectorCommand() 
 
   'Apply  
   command.Run(image) 
 
   'Result 
   'command.InFocusBlocks contains 6 blocks 
   'command.OutOfFocusBlocks contains 2 blocks 
   'command.CombinedTextBlocks represents the boundary of all in focus blocks 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

Help Version 20.0.2019.3.12
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Leadtools.ImageProcessing.Core Assembly