ObjectCounter Event

Summary

Optional delegate method for additional processing.

Syntax

C++/CLI

Python

public event EventHandler<ObjectCounterCommandEventArgs> ObjectCounter

public: 
event EventHandler<ObjectCounterCommandEventArgs^>^ ObjectCounter

def ObjectCounter(sender,e): # sender: ObjectCounterCommand e: ObjectCounterCommandEventArgs

Event Data

The event handler receives an argument of type ObjectCounterCommandEventArgs containing data related to this event. The following ObjectCounterCommandEventArgs properties provide information specific to this event.

Property	Description
ObjectData	Gets the two dimensional array corresponding to the location of the object pixels in the object rectangle.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Core; 
 
 
public void ObjectCounterCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"Black-White-Objects-1BitPP.tif")); 
 
   // Prepare the command 
   ObjectCounterCommand command = new ObjectCounterCommand(); 
   command.ObjectCounter += new EventHandler<ObjectCounterCommandEventArgs>(ObjectCounterEvent_S1); 
   command.Run(image); 
 
   Debug.WriteLine("ObjectCountis" + "( " + command.Count + " )"); 
 
} 
 
private void ObjectCounterEvent_S1(object sender, ObjectCounterCommandEventArgs e) 
{ 
   int RegionPixelSize; 
   RegionPixelSize = 0; 
 
   for (int i = e.ObjectRectangle.Left; i < e.ObjectRectangle.Right; i++) 
   { 
      for (int j = e.ObjectRectangle.Top; j < e.ObjectRectangle.Bottom; j++) 
      { 
         if (e.ObjectData[i - e.ObjectRectangle.Left][j - e.ObjectRectangle.Top] == 1) 
         { 
            RegionPixelSize++; 
         } 
      } 
   } 
 
   Debug.WriteLine("Region size in pixels is" + "( " + RegionPixelSize + " )"); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

ObjectCounterCommand Class

ObjectCounterCommand Members

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Help Version 22.0.2023.11.1

Leadtools.ImageProcessing.Core Assembly

Introduction

Getting Started

Namespaces

Leadtools.ImageProcessing.Core Namespace

Assemblies