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LoadZones(Stream) Method

Summary

Loads zones from a single-page zones .NET stream.

Syntax

C#
VB
C++
public void LoadZones( 
   Stream stream 
) 

Overloads Sub LoadZones( _ 
   ByVal stream As Stream _ 
)  

void LoadZones(  
   Stream^ stream 
)  

Parameters

stream
The .NET stream containing the zones to load.

Remarks

To save and load the zones of OCR pages, you can use one of these methods:

Note on loading zones from a multi-page zone file: If the file does not contain zones data with the correct page number, the engine will not load any zones for this page. After the method returns, any OCR page that did not have zones data will contain zero zones. (the Zones property contains 0 items). You can then use IOcrPage.AutoZone if required to re-zone this page.

Use this method to load the zones previously saved into a .NET stream with the SaveZones(stream) method. This method will load the zones in the first page found in the stream. To load the zones of a particular page, use LoadZones(stream, pageNumber).

The zones of this page will first be cleared prior to loading the new items.

After this method finishes, you can access the loaded zones in the Zones property.

To load and save the zones to a disk file, use LoadZones(fileName) and SaveZones(fileName).

Saving zones to an external file or a stream could be useful when you are processing forms. For example, you can load one of the forms and automatically find the zones inside it using AutoZone, if the automatic zone detection was not 100 percent satisfactory, you can update the zones in the Zones collection manually and then save the result with SaveZones(stream). Once the zones are saved. You can now process all similar forms in the following manner:

  • Add the form page or pages to an OCR document using the Pages collection of IOcrDocument.
  • Load the zones previously saved for each page using LoadZones(stream).
  • Skip calling AutoZone and directly call Recognize. This will also speed up the recognition process considerably.
Example

For an example, refer to AutoZone.

Requirements

Target Platforms

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