FxColorDropout Method (GdPictureImaging)

In This Topic

Dropout a color from the image.

Syntax

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

'Declaration
 
Public Function FxColorDropout( _
   ByVal ImageID As Integer, _
   ByVal Filter As ColorDropoutFilter _
) As GdPictureStatus

public GdPictureStatus FxColorDropout( 
   int ImageID,
   ColorDropoutFilter Filter
)

public function FxColorDropout( 
    ImageID: Integer;
    Filter: ColorDropoutFilter
): GdPictureStatus;

public function FxColorDropout( 
   ImageID : int,
   Filter : ColorDropoutFilter
) : GdPictureStatus;

public: GdPictureStatus FxColorDropout( 
   int ImageID,
   ColorDropoutFilter Filter
)

public:
GdPictureStatus FxColorDropout( 
   int ImageID,
   ColorDropoutFilter Filter
)

Parameters

ImageID: GdPicture image identifier.
Filter: A member of the ColorDropoutFilter enumeration defining the color to remove and the way to remove it.

Return Value

A member of the GdPictureStatus enumeration.

Example

Removing form from a jpeg 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.jpg", true);
 
    // Dropout the red pixels from the scan of a red form (pixels are set to white).
    gdpictureImaging.FxColorDropout(imageID, ColorDropoutFilter.RedForm);
    gdpictureImaging.SaveAsJPEG(imageID, "image.jpg", 75);
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
SetROI Method
ResetROI Method