Initializes a new BorderRemoveCommand class object with explicit parameters.
Supported in Silverlight, Windows Phone 7
Syntax
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.
Example
Run the BorderRemoveCommand on an image.
Visual Basic | Copy Code |
---|
Public WithEvents borderRemoveConstructorCallback As BorderRemoveCommand
Public Sub BorderRemoveConstructorExample()
Dim codecs As New RasterCodecs()
codecs.ThrowExceptionsOnInvalidImages = True
Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Clean.tif"))
' Prepare the command
borderRemoveConstructorCallback = New BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3)
borderRemoveConstructorCallback.Run(leadImage)
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.SetRegion(Nothing, e.Region, RasterRegionCombineMode.Set)
Dim command As InvertCommand = New InvertCommand
command.Run(e.Image)
e.Image.MakeRegionEmpty()
End If
End Sub
Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class |
C# | Copy Code |
---|
public void BorderRemoveConstructorExample()
{
// Load an image
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "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);
}
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.SetRegion(null, e.Region, RasterRegionCombineMode.Set);
InvertCommand command = new InvertCommand();
command.Run(e.Image);
e.Image.MakeRegionEmpty();
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
} |
SilverlightCSharp | Copy Code |
---|
public void BorderRemoveConstructorExample(RasterImage image, Stream outStream)
{
// 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);
// Save result image
RasterCodecs codecs = new RasterCodecs();
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1);
image.Dispose();
}
private void command_BorderRemove_S2(object sender, BorderRemoveCommandEventArgs e)
{
BorderRemoveCommandEventArgs ee = new BorderRemoveCommandEventArgs(e.Image,null, BorderRemoveBorderFlags.All, e.BoundingRectangle);
e.Status = RemoveStatus.NoRemove;
} |
SilverlightVB | Copy Code |
---|
Public Sub BorderRemoveConstructorExample(ByVal image As RasterImage, ByVal outStream As Stream)
' Prepare the command
Dim command As BorderRemoveCommand = New BorderRemoveCommand(BorderRemoveCommandFlags.UseVariance Or BorderRemoveCommandFlags.CallBackRegion, BorderRemoveBorderFlags.All, 20, 9, 3)
AddHandler command.BorderRemove, AddressOf command_BorderRemove_S2
command.Run(image)
' Save result image
Dim codecs As RasterCodecs = New RasterCodecs()
codecs.Save(image, outStream, RasterImageFormat.CcittGroup4, 1)
image.Dispose()
End Sub
Private Sub command_BorderRemove_S2(ByVal sender As Object, ByVal e As BorderRemoveCommandEventArgs)
Dim ee As BorderRemoveCommandEventArgs = New BorderRemoveCommandEventArgs(e.Image,Nothing, BorderRemoveBorderFlags.All, e.BoundingRectangle)
e.Status = RemoveStatus.NoRemove
End Sub |
Requirements
Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)
See Also