Leadtools.Forms.Ocr Namespace > IOcrPageCollection Interface > AutoPreprocess Method : AutoPreprocess(OcrAutoPreprocessPageCommand,Int32,Int32,OcrProgressCallback) Method |
void AutoPreprocess( OcrAutoPreprocessPageCommand command, int firstPageIndex, int lastPageIndex, OcrProgressCallback callback )
'Declaration Overloads Sub AutoPreprocess( _ ByVal command As OcrAutoPreprocessPageCommand, _ ByVal firstPageIndex As Integer, _ ByVal lastPageIndex As Integer, _ ByVal callback As OcrProgressCallback _ )
'Usage Dim instance As IOcrPageCollection Dim command As OcrAutoPreprocessPageCommand Dim firstPageIndex As Integer Dim lastPageIndex As Integer Dim callback As OcrProgressCallback instance.AutoPreprocess(command, firstPageIndex, lastPageIndex, callback)
void AutoPreprocess( OcrAutoPreprocessPageCommand command, int firstPageIndex, int lastPageIndex, OcrProgressCallback callback )
- (BOOL)autoPreprocess:(LTOcrAutoPreprocessPageCommand)command firstPageIndex:(int)firstPageIndex lastPageIndex:(int)lastPageIndex target:(id)target selector:(SEL)selector error:(NSError**)outError;
public void autoPreprocess(OcrAutoPreprocessPageCommand command, int firstPageIndex, int lastPageIndex, OcrProgressListener callback)
function Leadtools.Forms.Ocr.IOcrPageCollection.AutoPreprocess(OcrAutoPreprocessPageCommand,Int32,Int32,OcrProgressCallback)( command , firstPageIndex , lastPageIndex , callback )
void AutoPreprocess( OcrAutoPreprocessPageCommand command, int firstPageIndex, int lastPageIndex, OcrProgressCallback^ callback )
This method will iterate through pages between firstPageIndex and lastPageIndex in this OCR document and run IOcrPage.AutoPreprocess on each page.
You can use this method to deskew, rotate or invert the image according to command. By performing auto pre-processing on the page, you can improve the image quality of draft mode faxes.
You can use the OcrProgressCallback to show the operation progress or to abort it. For more information and an example, refer to OcrProgressCallback.
You should call this method prior to calling Recognize.
To perform auto-preprocessing on all the pages in the OCR document use AutoPreprocess(OcrAutoPreprocessPageCommand command, OcrProgressCallback callback).
IOcrPageCollection Interface
IOcrPageCollection Members
Overload List
IOcrPage.AutoPreprocess
OcrAutoPreprocessPageCommand Enumeration
IOcrPage.GetDeskewAngle
IOcrPage.GetRotateAngle
IOcrPage.IsInverted
Recognize
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
Programming with the LEADTOOLS .NET OCR