NativeAutoZone Method (IOcrPageCollection)

void NativeAutoZone( 
   NativeOcrZoneParser zoneParser,
   NativeOcrZoneFillMethod fillMethod,
   LogicalUnit zonesUnit,
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback callback
)

'Declaration
 

Sub NativeAutoZone( _
   ByVal zoneParser As NativeOcrZoneParser, _
   ByVal fillMethod As NativeOcrZoneFillMethod, _
   ByVal zonesUnit As LogicalUnit, _
   ByVal firstPageIndex As Integer, _
   ByVal lastPageIndex As Integer, _
   ByVal callback As OcrProgressCallback _
) 

'Usage
 

Dim instance As IOcrPageCollection
Dim zoneParser As NativeOcrZoneParser
Dim fillMethod As NativeOcrZoneFillMethod
Dim zonesUnit As LogicalUnit
Dim firstPageIndex As Integer
Dim lastPageIndex As Integer
Dim callback As OcrProgressCallback
 
instance.NativeAutoZone(zoneParser, fillMethod, zonesUnit, firstPageIndex, lastPageIndex, callback)

void NativeAutoZone( 
   NativeOcrZoneParser zoneParser,
   NativeOcrZoneFillMethod fillMethod,
   LogicalUnit zonesUnit,
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback callback
)

- (BOOL)autoZonePagesInRange:(NSRange)range
                    progress:(nullable LTOcrProgressHandler)progressHandler
                       error:(NSError **)error
            

public void autoZone(NativeOcrZoneParser zoneParser,
                     NativeOcrZoneFillMethod fillMethod,
                     int firstPageIndex,
                     int lastPageIndex,
                     OcrProgressListener callback)
            

function Leadtools.Forms.Ocr.IOcrPageCollection.NativeAutoZone( 
   zoneParser ,
   fillMethod ,
   zonesUnit ,
   firstPageIndex ,
   lastPageIndex ,
   callback 
)

void NativeAutoZone( 
   NativeOcrZoneParser zoneParser,
   NativeOcrZoneFillMethod fillMethod,
   LogicalUnit zonesUnit,
   int firstPageIndex,
   int lastPageIndex,
   OcrProgressCallback^ callback
) 

Parameters

zoneParser

The parser used for auto zoning.

Note: This parameter will always contain NativeOcrZoneParser.Default when using the LEADTOOLS OCR Advantage Engine.

fillMethod

The fill method used in the zones found.

zonesUnit

The units for the bounding rectangle of the new zones.

firstPageIndex

The zero-based index of the first page to decompose.

lastPageIndex

The zero-based index of the last page to decompose. A value of -1 means decompose up to and including the last page in the OCR document.

callback

Optional callback to show operation progress.

For more information on auto zoning and decomposition, refer to IOcrPage.NativeAutoZone.

This method will iterate through the pages between firstPageIndex and lastPageIndex and run IOcrPage.NativeAutoZone on each page.

You can use the OcrProgressCallback to show the operation progress or to abort it. For more information and an example, refer to OcrProgressCallback.

To perform auto decomposition to all the pages in the OCR document use AutoZone(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.

Target Platforms

Reference

IOcrPageCollection Interface
IOcrPageCollection Members
IOcrPage.AutoZone
Recognize
IOcrPageCollection Interface
IOcrZoneCollection Interface
OcrZone Structure
Programming with the LEADTOOLS .NET OCR