fxRemoveBackgroundChromaKey Method (GdPictureImaging)

In This Topic

Sets the Red, Green or Blue background color as transparent in a GdPicture image or in area of a GdPicture image defined by SetROI() method. This method is particularly accurate to remove the Green, Blue or Red background of a photo.

Syntax

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

'Declaration
 
Public Function fxRemoveBackgroundChromaKey( _
   ByVal ImageID As Integer, _
   ByVal Component As ColorKey, _
   ByVal Variation As Integer, _
   ByVal MinKeyValue As Integer _
) As GdPictureStatus

public GdPictureStatus fxRemoveBackgroundChromaKey( 
   int ImageID,
   ColorKey Component,
   int Variation,
   int MinKeyValue
)

public function fxRemoveBackgroundChromaKey( 
    ImageID: Integer;
    Component: ColorKey;
    Variation: Integer;
    MinKeyValue: Integer
): GdPictureStatus;

public function fxRemoveBackgroundChromaKey( 
   ImageID : int,
   Component : ColorKey,
   Variation : int,
   MinKeyValue : int
) : GdPictureStatus;

public: GdPictureStatus fxRemoveBackgroundChromaKey( 
   int ImageID,
   ColorKey Component,
   int Variation,
   int MinKeyValue
)

public:
GdPictureStatus fxRemoveBackgroundChromaKey( 
   int ImageID,
   ColorKey Component,
   int Variation,
   int MinKeyValue
)

Parameters

ImageID: GdPicture image identifier.
Component: A member of the ColorKey enumeration defining the color to remove (can be Red, Blue or Green).
Variation: Variation between 0 and 512. 0 means no possible variation of the color key. Suggest value is 240, higher can result with non removed background space.
MinKeyValue: Specifies the minimum value of the component. Must be a value between 0 and 255. Default value is 25 for dark background, 50 for standard background and 80 for background with high luminosity.

Return Value

A member of the GdPictureStatus enumeration.

Reference

GdPictureImaging Class
GdPictureImaging Members
SetROI Method
ResetROI Method