DirectionEdgeStatisticalCommand Constructor(Int32,Int32,Int32,RasterColor,RasterColor)

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

public DirectionEdgeStatisticalCommand( 
   int dimension,
   int threshold,
   int angle,
   RasterColor edgeColor,
   RasterColor backGroundColor
)

'Declaration
 
Public Function New( _
   ByVal dimension As Integer, _
   ByVal threshold As Integer, _
   ByVal angle As Integer, _
   ByVal edgeColor As RasterColor, _
   ByVal backGroundColor As RasterColor _
)

'Usage
 
Dim dimension As Integer
Dim threshold As Integer
Dim angle As Integer
Dim edgeColor As RasterColor
Dim backGroundColor As RasterColor
 
Dim instance As New DirectionEdgeStatisticalCommand(dimension, threshold, angle, edgeColor, backGroundColor)

public DirectionEdgeStatisticalCommand( 
   int dimension,
   int threshold,
   int angle,
   RasterColor edgeColor,
   RasterColor backGroundColor
)

function DirectionEdgeStatisticalCommand( 
   dimension ,
   threshold ,
   angle ,
   edgeColor ,
   backGroundColor 
)

public:
DirectionEdgeStatisticalCommand( 
   int dimension,
   int threshold,
   int angle,
   RasterColor edgeColor,
   RasterColor backGroundColor
)

Parameters

dimension: The dimension or the number of pixels used to calculate the edge in the specified direction, This parameter only accepts positive values.
threshold: Threshold value used to determine which pixels are edge pixels. If the difference in the intensity value between the pixel being tested and the average intensity of the pixels in the area specified in the dimension parameter around it is greater than this value, the pixel is an edge pixel. The threshold range for the 16, 48, and 64-bit images is from 0 to 65535 and for 12-bit images from 0 to 4095. Otherwise, it is from 0 to 255. The threshold is applied on channels separately.
angle: Value that represents the edge detector direction, in hundredths of degrees. Valid values range from -18000 through 18000. Positive values are produced by counterclockwise rotation above the horizon and negative values are produced by clockwise rotation below the horizon. This value is divided internally by 100.
edgeColor: Edge color.
backGroundColor: Non edge color.

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

Public Sub DirectionEdgeStatisticalConstructorExample()
   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 command As DirectionEdgeStatisticalCommand = New DirectionEdgeStatisticalCommand(20, 128, 3000, New RasterColor(255, 255, 255), 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

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

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

      // Prepare the command
      DirectionEdgeStatisticalCommand command = new DirectionEdgeStatisticalCommand(20, 128, 3000, new RasterColor(255, 255, 255), 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";
}

[TestMethod]
public async Task DirectionEdgeStatisticalConstructorExample()
{
   // 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(20, 128, 3000, RasterColorHelper.Create(255, 255, 255), 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);

}

public void DirectionEdgeStatisticalConstructorExample(RasterImage image, Stream outStream)
{
   // Prepare the command
   DirectionEdgeStatisticalCommand command = new DirectionEdgeStatisticalCommand(20, 128, 3000, new RasterColor(255, 255, 255), 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();
}

Public Sub DirectionEdgeStatisticalConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
   ' Prepare the command
   Dim command As DirectionEdgeStatisticalCommand = New DirectionEdgeStatisticalCommand(20, 128, 3000, New RasterColor(255, 255, 255), 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: 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

DirectionEdgeStatisticalCommand Class
DirectionEdgeStatisticalCommand Members
Overload List