FindBarcodeCandidateAreasCommand Class

Summary

Detects potential barcode candidates in an image.

Syntax

C++/CLI

Java

Python

public class FindBarcodeCandidateAreasCommand : RasterCommand

public class FindBarcodeCandidateAreasCommand 
    extends RasterCommand

public: 
   ref class FindBarcodeCandidateAreasCommand : RasterCommand

class FindBarcodeCandidateAreasCommand(RasterCommand):

Remarks

FindBarcodeCandidateAreasCommand is useful on images that have a barcode of poor quality and returns the candidate barcode bounds and confidence.

Another benefit with using FindBarcodeCandidateAreasCommand is a boost up in speed by locating potential barcode areas. To achieve this, use the bounds of the candidate barcode to pass to the BarcodeReader on the entire image.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
 
public void FindBarcodeCandidateAreasCommandExample() 
{ 
   // Initialize codecs 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "barcode1.tif")); 
 
   // Create command and set parameters for barcodes 
   FindBarcodeCandidateAreasCommand command = new FindBarcodeCandidateAreasCommand(); 
   command.UnitsType = BarcodeCandidateAreasUnitsType.Pixels; 
   command.BackgroundColor = new RasterColor(255, 255, 255); 
   command.BarcodeColor = new RasterColor(0, 0, 0); 
   command.MinimumBarcodeDimension = 10; 
 
   // Run the command 
   command.Run(image); 
 
   // First candidate area returned from running command 
   BarcodeCandidateArea barcodeCandidateArea = command.CandidateAreas[0]; 
 
   codecs.Dispose(); 
} 
       
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

FindBarcodeCandidateAreasCommand Members

Leadtools.ImageProcessing.Core Namespace

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Help Version 23.0.2024.3.3

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies