DirectionEdgeStatisticalCommand Class

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

public class DirectionEdgeStatisticalCommand : Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

'Declaration

Public Class DirectionEdgeStatisticalCommand 
   Inherits Leadtools.ImageProcessing.RasterCommand
   Implements Leadtools.ImageProcessing.IRasterCommand

'Usage

Dim instance As DirectionEdgeStatisticalCommand

public sealed class DirectionEdgeStatisticalCommand : Leadtools.ImageProcessing.IRasterCommand

@interface LTDirectionEdgeStatisticalCommand : LTRasterCommand

public class DirectionEdgeStatisticalCommand extends RasterCommand

function Leadtools.ImageProcessing.Effects.DirectionEdgeStatisticalCommand()

public ref class DirectionEdgeStatisticalCommand : public Leadtools.ImageProcessing.RasterCommand, Leadtools.ImageProcessing.IRasterCommand

The edges are detected by applying a statistical filter that analyzes the variations of colors in a specified direction 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.

Run the DirectionEdgeStatisticalCommand on an image, to find it is edges.

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

Copy Code

Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing.Effects

   
Public Sub DirectionEdgeStatisticalCommandExample()
   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 DirectionEdgeStatisticalCommand = New DirectionEdgeStatisticalCommand

   command.Dimension = 15
   command.Threshold = 128
   command.Angle = 4500
   command.EdgeColor = New RasterColor(255, 255, 255)
   command.BackGroundColor = New RasterColor(0, 0, 0)
   'Find the edges in the image. 
   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;

      
public void DirectionEdgeStatisticalCommandExample()
{
   // 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
   DirectionEdgeStatisticalCommand command = new DirectionEdgeStatisticalCommand();

   command.Dimension    = 15;
   command.Threshold    = 128;
   command.Angle        = 4500;
   command.EdgeColor       = new RasterColor(255, 255, 255);
   command.BackGroundColor = new RasterColor(0, 0, 0);

   //Find the edges in the image.
   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";
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.ImageProcessing;

      
public async Task DirectionEdgeStatisticalCommandExample()
{
   // Load an image
   RasterCodecs codecs = new RasterCodecs();
   codecs.ThrowExceptionsOnInvalidImages = true;
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Prepare the command
   DirectionEdgeStatisticalCommand command = new DirectionEdgeStatisticalCommand();

   command.Dimension    = 15;
   command.Threshold    = 128;
   command.Angle        = 4500;
   command.EdgeColor       = RasterColorHelper.Create(255, 255, 255);
   command.BackGroundColor = RasterColorHelper.Create(0, 0, 0);

   //Find the edges in the image.
   command.Run(image);
   //Save as BMP
   string destFileName = @"result.bmp";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 24);

}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Effects;
using Leadtools.Examples;

public void DirectionEdgeStatisticalCommandExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   DirectionEdgeStatisticalCommand command = new DirectionEdgeStatisticalCommand();
   command.Dimension = 15;
   command.Threshold = 128;
   command.Angle = 4500;
   command.EdgeColor = new RasterColor(255, 255, 255);
   command.BackGroundColor = new RasterColor(0, 0, 0);

   //Find the edges in the image.
   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 DirectionEdgeStatisticalCommandExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As DirectionEdgeStatisticalCommand = New DirectionEdgeStatisticalCommand()
   command.Dimension = 15
   command.Threshold = 128
   command.Angle = 4500
   command.EdgeColor = New RasterColor(255, 255, 255)
   command.BackGroundColor = New RasterColor(0, 0, 0)

   'Find the edges in the image.
   command.Run(image)
   ' Save result image
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24)
   image.Dispose()
End Sub

Target Platforms

Reference