CropWhiteBorders(Int32) Method

In This Topic

Detects and removes margins consisting of white color around a GdPicture image.

Syntax

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

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

public GdPictureStatus CropWhiteBorders( 
   int ImageID
)

public function CropWhiteBorders( 
    ImageID: Integer
): GdPictureStatus;

public function CropWhiteBorders( 
   ImageID : int
) : GdPictureStatus;

public: GdPictureStatus CropWhiteBorders( 
   int ImageID
)

public:
GdPictureStatus CropWhiteBorders( 
   int ImageID
)

Parameters

ImageID: GdPicture image identifier.

Return Value

A member of the GdPictureStatus enumeration.

Remarks

This method or an overload of it is used in the "Image Processing" Demo.

Example

Removing the white margins 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);
 
    // Detect and remove the white margins using the default confidence level.
    gdpictureImaging.CropWhiteBorders(imageID);
    
    gdpictureImaging.SaveAsJPEG(imageID, "image.jpg", 75);
    gdpictureImaging.ReleaseGdPictureImage(imageID);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
Overload List