Perform auto image processing clean up on all the pages in the OCR document to enhance the quality of the pages before starting its recognition.
Overloads Sub AutoPreprocess( _
ByVal command As OcrAutoPreprocessPageCommand, _
ByVal callback As OcrProgressCallback _
The preprocessing command to perform.
Optional callback to show operation progress.
This method will iterate through all the pages 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 should call this method prior to calling Recognize.
To perform auto-preprocessing to a range of pages in the OCR document use AutoPreprocess(OcrAutoPreprocessPageCommand command, int firstPageIndex, int lastPageIndex, OcrProgressCallback callback).
This member only works with memory-based documents and will throw an exception otherwise. For more information, refer to IOcrDocumentManager.CreateDocument and Programming with the LEADTOOLS .NET OCR.
For an example, refer to IOcrPageCollection.
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries