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EdgeDetectStatisticalCommand Class

Summary

Detects edges by examining the variation of colors in all directions using statistical indices.

Syntax

C#
VB
Java
Objective-C
WinRT C#
C++
public class EdgeDetectStatisticalCommand : RasterCommand 
public sealed class EdgeDetectStatisticalCommand : Leadtools.Imageprocessing.Leadtools.ImageProcessing.IRasterCommand   
@interface LTEdgeDetectStatisticalCommand : LTRasterCommand 
public class EdgeDetectStatisticalCommand extends RasterCommand 
function Leadtools.ImageProcessing.Effects.EdgeDetectStatisticalCommand() 

Remarks
  • The edges are detected by applying a statistical filter that analyzes the variations of colors in all directions around each pixel.
  • 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 32-bit grayscale images.

For more information, refer to Detecting and Enhancing Edges and Lines.

Example

Run the EdgeDetectStatisticalCommand on an image.

C#
VB
Silverlight C#
Silverlight VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
 
public void EdgeDetectStatisticalCommandExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg")); 
 
   // Prepare the command 
   EdgeDetectStatisticalCommand command = new EdgeDetectStatisticalCommand(); 
   command.Dimension = 15; 
   command.Threshold = 128; 
   command.EdgeColor = new RasterColor(255, 255, 255); 
   command.BackGroundColor = new RasterColor(0, 0, 0); 
   // Apply an edge detector statistical command. 
   command.Run(image); 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
      Leadtools.Examples.Support.SetLicense() 
 
Public Sub EdgeDetectStatisticalCommandExample() 
   Dim codecs As New RasterCodecs() 
   codecs.ThrowExceptionsOnInvalidImages = True 
 
   Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\\NaturalFruits.jpg")) 
 
   ' Prepare the command 
   Dim command As EdgeDetectStatisticalCommand = New EdgeDetectStatisticalCommand 
   command.Dimension = 15 
   command.Threshold = 128 
   command.EdgeColor = New RasterColor(255, 255, 255) 
   command.BackGroundColor = New RasterColor(0, 0, 0) 
   ' Apply an edge detector statistical command. 
   command.Run(leadImage) 
   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 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Effects; 
using Leadtools.Examples; 
 
public void EdgeDetectStatisticalCommandExample(RasterImage image, Stream outStream) 
{ 
   // Prepare the command 
   EdgeDetectStatisticalCommand command = new EdgeDetectStatisticalCommand(); 
   command.Dimension = 15; 
   command.Threshold = 128; 
   command.EdgeColor = new RasterColor(255, 255, 255); 
   command.BackGroundColor = new RasterColor(0, 0, 0); 
   // Apply an edge detector statistical command. 
   command.Run(image); 
   // Save result image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); 
   image.Dispose(); 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Effects 
 
Public Sub EdgeDetectStatisticalCommandExample(ByVal image As RasterImage, ByVal outStream As Stream) 
   ' Prepare the command 
   Dim command As EdgeDetectStatisticalCommand = New EdgeDetectStatisticalCommand() 
   command.Dimension = 15 
   command.Threshold = 128 
   command.EdgeColor = New RasterColor(255, 255, 255) 
   command.BackGroundColor = New RasterColor(0, 0, 0) 
   ' Apply an edge detector statistical command. 
   command.Run(image) 
   ' Save result image 
   Dim codecs As RasterCodecs = New RasterCodecs() 
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) 
   image.Dispose() 
End Sub 

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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Leadtools.ImageProcessing.Effects Assembly