GdPicture image identifier.
Example





In This Topic
GdPicture14 Namespace / GdPictureImaging Class / KeepRedComponent Method

KeepRedComponent Method (GdPictureImaging)

In This Topic
Keeps only the red color component of a GdPicture image or of an area of a GdPicture image defined by SetROI() method.
Syntax
'Declaration

 


Public Function KeepRedComponent( _

   ByVal ImageID As Integer _

) As GdPictureStatus
public GdPictureStatus KeepRedComponent( 

   int ImageID

)
public function KeepRedComponent( 

    ImageID: Integer

): GdPictureStatus; 
public function KeepRedComponent( 

   ImageID : int

) : GdPictureStatus;
public: GdPictureStatus KeepRedComponent( 

   int ImageID

) 
public:

GdPictureStatus KeepRedComponent( 

   int ImageID

)

Parameters

ImageID
GdPicture image identifier.

Return Value

A member of the GdPictureStatus enumeration.
Remarks
This method is used in the "Image Processing" Demo.
Example
Filtering a jpeg image so only the red component is kept. 
using (GdPictureImaging gdpictureImaging = new GdPictureImaging())

{

    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("image.jpg", false);

 

    // Keep only the blue color component.

    gdpictureImaging.KeepRedComponent(imageID);

    gdpictureImaging.SaveAsJPEG(imageID, "image.jpg", 75);

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members
SetROI Method
ResetROI Method