GetDeskewAngle Method

int GetDeskewAngle()

'Declaration
 
Function GetDeskewAngle() As Integer

'Usage
 
Dim instance As IOcrPage
Dim value As Integer
 
value = instance.GetDeskewAngle()

int GetDeskewAngle()

function Leadtools.Forms.Ocr.IOcrPage.GetDeskewAngle()

int GetDeskewAngle(); 

Return Value

If the page is not skewed, this method will return 0

Use AutoPreprocess with OcrAutoPreprocessPageCommand.Deskew to automatically deskew the page image prior to calling Recognize or RecognizeText. This could enhance the quality of the image before starting its recognition.

If the image is skewed, GetDeskewAngle will return the angle needed to deskew the image, if you call AutoPreprocess on the page, all subsequent calls to GetDeskewAngle will return 0 since the image is no longer skewed. Hence, you must use GetDeskewAngle before calling AutoPreprocess.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IOcrPage Interface
IOcrPage Members
AutoPreprocess Method
GetRotateAngle Method
IsInverted Method
Recognize Method
OcrAutoPreprocessPageCommand Enumeration
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
Programming with the LEADTOOLS .NET OCR