GdPicture image identifier.
Example





In This Topic
GdPicture14 Namespace / GdPictureImaging Class / FxStretchContrast Method

FxStretchContrast Method (GdPictureImaging)

In This Topic
Performs a contrast histogram stretch filter on a GdPicture image or on an area of a GdPicture image defined by SetROI() method.
Syntax
'Declaration

 


Public Function FxStretchContrast( _

   ByVal ImageID As Integer _

) As GdPictureStatus
public GdPictureStatus FxStretchContrast( 

   int ImageID

)
public function FxStretchContrast( 

    ImageID: Integer

): GdPictureStatus; 
public function FxStretchContrast( 

   ImageID : int

) : GdPictureStatus;
public: GdPictureStatus FxStretchContrast( 

   int ImageID

) 
public:

GdPictureStatus FxStretchContrast( 

   int ImageID

)

Parameters

ImageID
GdPicture image identifier.

Return Value

A member of the GdPictureStatus enumeration.
Example
Applying the contrast stretch effect to a colored 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("color_image.jpg", true);

 

    // Stretch the contrast levels of an image.

    gdpictureImaging.FxStretchContrast(imageID);

    gdpictureImaging.SaveAsJPEG(imageID, "color_image.jpg");

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}
See Also

Reference

GdPictureImaging Class
GdPictureImaging Members
SetROI Method
ResetROI Method