The OcrAutoPreprocessPageCommand Enumeration is available as an add-on to the LEADTOOLS Document and Medical Imaging toolkits.
Performs page pre-processing commands
Syntax
| Visual Basic (Declaration) | |
|---|---|
<SerializableAttribute()> Public Enum OcrAutoPreprocessPageCommand Inherits System.Enum Implements IComparable, IConvertible, IFormattable | |
| Visual Basic (Usage) |  Copy Code |
|---|---|
Dim instance As OcrAutoPreprocessPageCommand | |
| C# | |
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[SerializableAttribute()] public enum OcrAutoPreprocessPageCommand : System.Enum, IComparable, IConvertible, IFormattable | |
| C++/CLI | |
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[SerializableAttribute()] public enum class OcrAutoPreprocessPageCommand : public System.Enum, IComparable, IConvertible, IFormattable | |
Members
| Member | Description |
|---|---|
| All | Run all the commands (Deskew, Rotate, Invert) |
| Deskew | Automatic deskewing. If the image is skewed, the IOcrPage.AutoPreprocess method will try to deskew it |
| Invert | Automatic inversion. If the image is black and white and is inverted (contains white on black data), the IOcrPage.AutoPreprocess method will automatically convert the image data to be black on white |
| Rotate | Automatic rotation. If the image is rotated (its view perspective is anything other than top-left), the IOcrPage.AutoPreprocess method will auto orient it to top-left. This command is especially useful if the image upside-down. |
Example
For an example, refer to IOcrPage.AutoPreprocess.
Remarks
The OCR engine can perform a series of image pre-processing steps in order to enhance the quality of the image before starting its recognition.
Perform these image pre-processing steps by calling the IOcrPage.AutoPreprocess method. Call this method prior to calling IOcrPage.Recognize or IOcrPage.RecognizeText.
Inheritance Hierarchy
System.Object
System.ValueType
System.Enum
Leadtools.Forms.Ocr.OcrAutoPreprocessPageCommand
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7