FeretsDiameterCommand Class

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class FeretsDiameterCommand

'Declaration
 
Public Class FeretsDiameterCommand

'Usage
 
Dim instance As FeretsDiameterCommand

public sealed class FeretsDiameterCommand

function Leadtools.ImageProcessing.Effects.FeretsDiameterCommand()

public ref class FeretsDiameterCommand

This command calculates the Feret's Diameter (caliper length), the longest distance between any two points along the boundary. This is equivalent to the minimum diameter of a tube through which this object can pass.
This command does not support signed data images.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub FeretsDiameterCommandExample()
   Dim codecs As New RasterCodecs()
   codecs.ThrowExceptionsOnInvalidImages = True

   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"))

   ' Prepare the command
   Dim rcRect As LeadRect = New LeadRect(leadImage.Width \ 4, leadImage.Height \ 4, leadImage.Width * 3 \ 4, leadImage.Height * 3 \ 4)
   leadImage.AddEllipseToRegion(Nothing, rcRect, RasterRegionCombineMode.Set)

   Dim contourcommand As RegionContourPointsCommand = New RegionContourPointsCommand(Nothing)

   contourcommand.Run(leadImage)
   Dim command As FeretsDiameterCommand = New FeretsDiameterCommand(contourcommand.Points)
   command.Run()
   codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24)

End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void FeretsDiameterCommandExample()
   {
      // Load an image
      RasterCodecs codecs = new RasterCodecs();
      codecs.ThrowExceptionsOnInvalidImages = true;

      RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg"));

      // Prepare the command
      LeadRect rcRect = new LeadRect(image.Width / 4, image.Height / 4, image.Width * 3 / 4, image.Height * 3 / 4);
      image.AddEllipseToRegion(null, rcRect, RasterRegionCombineMode.Set); 

      RegionContourPointsCommand contourcommand = new RegionContourPointsCommand(null);
      if (contourcommand != null)
      {
         contourcommand.Run(image);
         codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24);
      }
      FeretsDiameterCommand command = new FeretsDiameterCommand(contourcommand.Points);
      command.Run();

   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference