The PreprocessPageCommands Property is available as an add-on to the LEADTOOLS Document and Medical Imaging toolkits.
Gets a list of the auto-preprocess commands to perform on each document page prior to recognition.
Syntax
| Visual Basic (Declaration) | |
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ReadOnly Property PreprocessPageCommands As IList(Of OcrAutoPreprocessPageCommand) | |
| Visual Basic (Usage) |  Copy Code |
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Dim instance As IOcrAutoRecognizeManager Dim value As IList(Of OcrAutoPreprocessPageCommand) value = instance.PreprocessPageCommands | |
| C# | |
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IList<OcrAutoPreprocessPageCommand> PreprocessPageCommands {get;} | |
| C++/CLI | |
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property IList<OcrAutoPreprocessPageCommand>^ PreprocessPageCommands { IList<OcrAutoPreprocessPageCommand>^ get(); } | |
Property Value
A list of OcrAutoPreprocessPageCommand commands to perform on each document page prior to recognition. Default value is an array of on item (OcrAutoPreprocessPageCommand.Deskew).Example
Remarks
The IOcrAutoRecognizeManager interface also has the following options to use with the Run, IOcrAutoRecognizeManager.RunJob and IOcrAutoRecognizeManager.RunJobAsync methods:
| Option | Description |
|---|---|
| IOcrAutoRecognizeManager.MaximumPagesBeforeLtd |
Used to add support for converting a document with unlimited number of pages. An OCR recognition operation on a document that contains a large amount of pages (10 and more) might result in an out of memory error. All of the LEADTOOLS OCR engines supports saving the intermediate recognition results to a temporary LTD file (DocumentFormat.LTD). The result of subsequent pages will be appended to this temporary file. When all the pages of the document have been recognized, the engine will convert the temporary LTD file to the desired output format. The IOcrAutoRecognizeManager.MaximumPagesBeforeLtd property defines the maximum number of pages processed as a whole. For example, if the original document has 20 pages and the value of this property is 8, the engine will recognize the first 8 pages and saves the result to a temporary file, recognizes the second 8 pages and append the results, and finally, recognize the last 4 pages and convert the temporary document to the final format. |
| IOcrAutoRecognizeManager.PreprocessPageCommands |
Holds an array of OcrAutoPreprocessPageCommand items to control what auto-preprocess operation to perform on each page document prior to recognition. |
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7