Public Function New( _
   ByVal flags As BorderRemoveCommandFlags, _
   ByVal border As BorderRemoveBorderFlags, _
   ByVal percent As Integer, _
   ByVal whiteNoiseLength As Integer, _
   ByVal variance As Integer _
)

Visual Basic (Usage)	Copy Code
Dim flags As BorderRemoveCommandFlags Dim border As BorderRemoveBorderFlags Dim percent As Integer Dim whiteNoiseLength As Integer Dim variance As Integer   Dim instance As BorderRemoveCommand(flags, border, percent, whiteNoiseLength, variance)

public BorderRemoveCommand( 
   BorderRemoveCommandFlags flags,
   BorderRemoveBorderFlags border,
   int percent,
   int whiteNoiseLength,
   int variance
)

public:
BorderRemoveCommand( 
   BorderRemoveCommandFlags flags,
   BorderRemoveBorderFlags border,
   int percent,
   int whiteNoiseLength,
   int variance
)

Parameters

flags

Flag that determines the behavior of the border removal process.

border

Flag that indicates which border to remove.

percent

Percent of the image dimension in which the border will be found. For most images, use 20. For example, if an image is 200 pixels wide, Percent is set to 20 and Border is set to BorderRemoveBorderFlags.Left, then the left border will be found in the area between the left edge of the image and a line 40 pixels from the left edge. If the border is closer to the edge of the image, use a smaller value. If the border is farther from the edge, use a larger value.

whiteNoiseLength

Amount of white noise tolerated when determining the border. The units are in pixels. Values of 0 to 10 are sufficient for most images.

variance

Amount of variance tolerated in the border. If the border varies significantly in thickness, you should use a higher value for Variance. Range is 0 to 10.

Run the BorderRemoveCommand on an image.

Visual Basic

Copy Code

Public WithEvents borderRemoveConstructorCallback As BorderRemoveCommand Public Sub BorderRemoveConstructorExample()    RasterCodecs.Startup()    Dim codecs As New RasterCodecs()    codecs.ThrowExceptionsOnInvalidImages = True    Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Clean.tif")    ' Prepare the command    borderRemoveConstructorCallback = New BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3)    borderRemoveConstructorCallback.Run(leadImage)    RasterCodecs.Shutdown() End Sub Private Sub BorderRemoveCommand_BorderRemove_S2(ByVal sender As Object, ByVal e As BorderRemoveCommandEventArgs) Handles borderRemoveConstructorCallback.BorderRemove    Dim ee As BorderRemoveCommandEventArgs = New BorderRemoveCommandEventArgs(e.Image, e.Region, BorderRemoveBorderFlags.All, e.BoundingRectangle)    e.Status = RemoveStatus.NoRemove    If Not (e.Region Is Nothing) Then       e.Image.AddGdiPlusRegionToRegion(Nothing, e.Region, RasterRegionCombineMode.Set)       Dim command As InvertCommand = New InvertCommand       command.Run(e.Image)       e.Image.MakeRegionEmpty()    End If End Sub

C#

Copy Code

public void BorderRemoveConstructorExample()  {     // Load an image     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();     codecs.ThrowExceptionsOnInvalidImages = true;       RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Clean.tif");       // Prepare the command     BorderRemoveCommand command = new BorderRemoveCommand( BorderRemoveCommandFlags.UseVariance | BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3);     command.BorderRemove += new EventHandler<BorderRemoveCommandEventArgs>(command_BorderRemove_S2);     command.Run(image);       RasterCodecs.Shutdown();  }    private void command_BorderRemove_S2(object sender, BorderRemoveCommandEventArgs e)  {     BorderRemoveCommandEventArgs ee = new BorderRemoveCommandEventArgs(e.Image, e.Region, BorderRemoveBorderFlags.All, e.BoundingRectangle);     e.Status = RemoveStatus.NoRemove;       if(e.Region != null)     {        e.Image.AddGdiPlusRegionToRegion(null, e.Region, RasterRegionCombineMode.Set);        InvertCommand command = new InvertCommand();        command.Run(e.Image);        e.Image.MakeRegionEmpty();     }  }

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference