GdPictureImaging.CropBorders Method (Integer, Single, ReferencePoint, Integer, Integer, Integer, Integer)

Detects margins consisting of constant color around a GdPicture image.

This function returns the coordinate of the cropping selection which can be used by the Crop function.

public GdPictureStatus CropBorders(
    int ImageID, 
    Single Confidence, 
    ReferencePoint PixelReference, 
    ref int Left, 
    ref int Top, 
    ref int Width, 
    ref int Height
);

Visual Basic

Public Function CropBorders(
    ByVal ImageID As Integer, 
    ByVal Confidence As Single, 
    ByVal PixelReference As ReferencePoint, 
    ByRef Left As Integer, 
    ByRef Top As Integer, 
    ByRef Width As Integer, 
    ByRef Height As Integer
) As GdPictureStatus

Parameters

Parameters	Description
ImageID	GdPicture Image Identifier.
Confidence	Confidence threshold in percentage. Default value is 90.
PixelReference	A member of the ReferencePoint enumeration. Default value is ReferencePoint.ReferencePointTopLeft.
Left	Returns the left coordinate, in pixel, of the area without margins.
Top	Returns the top coordinate, in pixel, of the area without margins.
Width	Returns the width, in pixel, of the area without margins.
Height	Returns the height, in pixel, of the area without margins.

Returns

A member of the GdPictureStatus enumeration.

Example

Detects & crops borders around an image

Copy Code

Dim Left, Top, Width, Height As Integer
 
Imaging1.CropBorders(ImageID, 90, ReferencePoint.ReferencePointTopLeft, Left, Top, Width, Height) 'Detect
Imaging1.Crop(ImageID, Left, Top, Width, Height) 'Crop