FxBitonalDilate4 Method (GdPictureImaging)

In This Topic

Dilates black pixels in a GdPicture image or in an area of a GdPicture image defined by SetROI() method. This filter helps to dilate black pixels in 4 directions: N, S, W, E. The actions of this filter are less prominent than FxDilate8. It can be used used to improve very fine and degraded characters.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function FxBitonalDilate4( _
   ByVal ImageID As Integer _
) As GdPictureStatus

public GdPictureStatus FxBitonalDilate4( 
   int ImageID
)

public function FxBitonalDilate4( 
    ImageID: Integer
): GdPictureStatus;

public function FxBitonalDilate4( 
   ImageID : int
) : GdPictureStatus;

public: GdPictureStatus FxBitonalDilate4( 
   int ImageID
)

public:
GdPictureStatus FxBitonalDilate4( 
   int ImageID
)

Parameters

ImageID: GdPicture image identifier.

Return Value

A member of the GdPictureStatus enumeration.

Remarks

This method is used in the "Image Processing" and "Barcode Recognition"Demo.

This method requires the Image Documents component to run.

Example

Dilating a black and white tiff image.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    // LoadInMemory parameter is set to true in order to be able to update the input file.
    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.tif", true);
 
    // Dilates black pixels in 4 directions: N, S, W, E.
    gdpictureImaging.FxBitonalDilate4(imageID);
    gdpictureImaging.SaveAsTIFF(imageID, "image.tif", TiffCompression.TiffCompressionCCITT4);
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
SetROI Method
ResetROI Method
FxBitonalDilateH Method
FxBitonalDilateV Method
FxBitonalDilate8 Method