AutoDeskew(Int32,Boolean) Method

In This Topic

Tries to deskew a GdPicture image. Deskewing an image can help a lot to do OCR, OMR, barcode detection or just improve the readability of an image.

Syntax

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

'Declaration

 

Public Overloads Function AutoDeskew( _

   ByVal ImageID As Integer, _

   ByVal Optimistic As Boolean _

) As GdPictureStatus

public GdPictureStatus AutoDeskew( 

   int ImageID,

   bool Optimistic

)

public function AutoDeskew( 

    ImageID: Integer;

    Optimistic: Boolean

): GdPictureStatus;

public function AutoDeskew( 

   ImageID : int,

   Optimistic : boolean

) : GdPictureStatus;

public: GdPictureStatus AutoDeskew( 

   int ImageID,

   bool Optimistic

)

public:

GdPictureStatus AutoDeskew( 

   int ImageID,

   bool Optimistic

)

Parameters

ImageID: GdPicture image identifier.
Optimistic: Determines if the engine must be optimistic in the skew detection. For example, set true when you know the image has a skew and false otherwise. Value used by other overloads is False.

Return Value

A member of the GdPictureStatus enumeration.

Example

Deskewing a tiff image.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())

{

    int imageID = gdpictureImaging.CreateGdPictureImageFromFile("skewed.tif");

 

    gdpictureImaging.AutoDeskew(imageID, true);

 

    // Let's encode the new tiff with the same mode used by the input image.

    TiffCompression tiffCompression = gdpictureImaging.GetTiffCompression(imageID);

 

    gdpictureImaging.SaveAsTIFF(imageID, "deskewed.tif", tiffCompression);

    gdpictureImaging.ReleaseGdPictureImage(imageID);

}

Reference

GdPictureImaging Class
GdPictureImaging Members
Overload List
GetSkewAngle(Int32,Single) Method