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ObjectCounter Event

Summary
Optional delegate method for additional processing.
Syntax
C#
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.

PropertyDescription
ObjectData Gets the two dimensional array corresponding to the location of the object pixels in the object rectangle.
Example
C#
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:\LEADTOOLS23\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.3.3
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Leadtools.ImageProcessing.Core Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.