ObjectInformationCommand Class

Summary

Determines the position, orientation and roundness of the object in the image.

Syntax

Objective-C

C++

Java

public class ObjectInformationCommand : RasterCommand

Public Class ObjectInformationCommand  
   Inherits RasterCommand

@interface LTObjectInformationCommand : LTRasterCommand

public class ObjectInformationCommand extends RasterCommand

public ref class ObjectInformationCommand : public RasterCommand

Remarks

All the objects in the image are considered to be a single object. This command determines various attributes of the object in the image to identify the objects and to determine their position and orientation. If you do not need certain values pass null instead.
The results point and angle information obtained by this command are multiplied by 100 in order to obtain more precision. To get the actual results, divide by 100.
This command supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
This command does not support signed data images.
This command does not support 32-bit grayscale images.

Example

Run the ObjectInformationCommand on an image.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void ObjectInformationCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); 
 
   // Prepare the command 
   //Get the objects center of mass and it's roundness. I am not interested in the axis' orientation, so I pass NULL_ 
   ObjectInformationCommand command = new ObjectInformationCommand(false); 
   command.Run(image); 
 
   MessageBox.Show("Angle = " + command.Angle + "\n" + 
      "Roundness = " + command.Roundness + "\n" + 
      "X = " + command.CenterOfMass.X + "\n" + 
      "Y = " + command.CenterOfMass.Y); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub ObjectInformationCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")) 
 
   ' Prepare the command 
   'Get the objects center of mass and it's roundness. I am not interested in the axis' orientation, so I pass Nothing_ 
   Dim command As ObjectInformationCommand = New ObjectInformationCommand(False) 
   command.Run(leadImage) 
 
   MessageBox.Show("Angle = " + command.Angle.ToString + Chr(13) + 
      "Roundness = " + command.Roundness.ToString + Chr(13) + 
      "X = " + command.CenterOfMass.X.ToString + Chr(13) + 
      "Y = " + command.CenterOfMass.Y.ToString) 
 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

c#[Silverlight C# Example] 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
using Leadtools.Examples; 
 
public void ObjectInformationCommandExample(RasterImage image) 
{ 
   // Prepare the command 
   //Get the objects center of mass and it's roundness. I am not interested in the axis' orientation, so I pass NULL_ 
   ObjectInformationCommand command = new ObjectInformationCommand(false); 
   command.Run(image); 
 
   Debug.WriteLine("Angle = " + command.Angle + "\n" + 
      "Roundness = " + command.Roundness + "\n" + 
      "X = " + command.CenterOfMass.X + "\n" + 
      "Y = " + command.CenterOfMass.Y); 
} 
vb[Silverlight VB Example] 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub ObjectInformationCommandExample(ByVal image As RasterImage) 
   ' Prepare the command 
   'Get the objects center of mass and it's roundness. I am not interested in the axis' orientation, so I pass NULL_ 
   Dim command As ObjectInformationCommand = New ObjectInformationCommand(False) 
   command.Run(image) 
 
   Debug.WriteLine("Angle = " & command.Angle + Constants.vbLf & "Roundness = " & command.Roundness + Constants.vbLf & "X = " & 
                   command.CenterOfMass.X + Constants.vbLf & "Y = " & command.CenterOfMass.Y) 
End Sub