OmrOptions Property

Summary

Gets the OMR (Optical Mark Recognition) settings currently used by the engine.

Syntax

Objective-C

C++

Java

public IOcrOmrOptions OmrOptions { get; }

ReadOnly Property OmrOptions As IOcrOmrOptions

@property (nonatomic, strong, readonly) LTOcrOmrOptions *omrOptions

public OcrOmrOptions getOmrOptions()

property IOcrOmrOptions^ OmrOptions { 
   IOcrOmrOptions^ get(); 
}

Property Value

An IOcrOmrOptions interface implementation object that defines the OMR settings currently used by the engine.

Remarks

Use of OMR in LEADTOOLS requires a special key to unlock OMR capabilities. For more information, refer to Unlocking Special LEAD Features.

To get the instance of the IOcrOmrOptions interface currently used in the engine call the IOcrSpellCheckManager.OmrOptions property.

Use the IOcrOmrOptions interface, you can change the following OMR settings:

Change the frame detection method using the IOcrOmrOptions.FrameDetectionMethod property. Frames stand for the check boxes that may exist around OMR fields.
Change the sensitivity of the OMR detection engine using the IOcrOmrOptions.Sensitivity property.
Change which characters are used to replace unfilled and filled OMR marks in the output document (for example, in a PDF file) by calling the IOcrOmrOptions.GetStateRecognitionCharacter and IOcrOmrOptions.SetStateRecognitionCharacter methods.
Note that the native engine formats do not support outputting OMR characters in the final document.

The OMR zones of a page have the OcrZone.ZoneType property set to OcrZoneType.Omr.

All LEADTOOLS OCR engines support OMR. However, only the LEADTOOLS OCR Module - LEAD Engine supports auto-detection of OMR zones during auto-zoning of the OCR page. To set up OMR zone auto-detection, make sure that the "Detect Checkbox" is one of the Recognition.Zoning.Options setting flags included before calling IOcrPage.AutoZone or IOcrPage.Recognize. The rest of the OCR engines require that the OMR zones be manually added to the page by setting their boundaries through OcrZone.Bounds and zone type as described above. Then add the zones to the page using the IOcrPage.Zones collection before calling IOcrPage.Recognize.

For more information refer to Using OMR in LEADTOOLS .NET OCR.

Example

For an example, refer to IOcrOmrOptions.

Requirements

Target Platforms