Visual Basic (Declaration) | |
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<SerializableAttribute()> Public Structure OcrCharacter Inherits ValueType |
Visual Basic (Usage) | Copy Code |
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C# | |
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[SerializableAttribute()] public struct OcrCharacter : ValueType |
C++/CLI | |
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[SerializableAttribute()] public value class OcrCharacter : public ValueType |
To get the recognized characters of a page, call IOcrPage.GetRecognizedCharacters after IOcrPage.Recognize or IOcrPage.RecognizeText.
To update the recognized characters of a page, call IOcrPage.GetRecognizedCharacters before calling IOcrDocument.Save or IOcrDocument.SaveXml.
IOcrPageCharacters implements the standard Generic IList, Generic ICollection and Generic IEnumerable interfaces with items of type IOcrZoneCharacters. Each item in the IOcrPageCharacters contains a collection of the character collections of the zones.
The IOcrZoneCharacters interface contains a collection of the characters for a particular zone.
IOcrZoneCharacters also implements Generic IList, Generic ICollection and Generic IEnumerable interfaces but with items of type OcrCharacter. Each item in the IOcrZoneCharacters contains a collection of the characters of the zone.
For example, if you are interesed in iterating through the characters of the 2nd zone in the page, you can do the following:
// Get the page characters
IOcrPageCharacters pageCharacters = ocrPage.GetRecognizedCharacters();
// Get the 2nd zone characters. Note, index is zero-based so 2nd zone is index 1
// You can also iterate through the pageCharacters collection and fine the IOcrZoneCharacters item with ZoneIndex = 1
IOcrZoneCharacters zoneCharacters = pageCharacters.FindZoneCharacters(1);
// Loop through the characters
foreach(OcrCharacter ocrCharacter in zoneCharacters)
{
// Do something with ocrCharacter
}
OcrCharacter is the most detailed information available about the recognized characters.
Touching characters, those whose shapes are physically joined in the page passed to the OCR engine, will result in a separate OcrCharacter structure for each recognized character within the block. However, the coordinate property of these characters (Bounds) will have identical coordinates defining a rectangle boundary for the character block. The order of the OcrCharacter structures representing a character block gives the order of the touching characters on the original document. This means the coordinates do not give information on the order of characters inside a boundary block.
System.Object
System.ValueType
Leadtools.Forms.Ocr.OcrCharacter
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family
Reference
OcrCharacter MembersLeadtools.Forms.Ocr Namespace
IOcrPage.SetRecognizedCharacters
IOcrPage.GetRecognizedCharacters
IOcrPage.Recognize
IOcrPage.IsRecognized
OcrCharacter Structure
IOcrPageCharacters Interface
IOcrZoneCharacters Interface
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
Programming with Leadtools .NET OCR
OCR Confidence Reporting