If the zone list is empty (i.e., there are no zones defined), the DECOMPOSITION page-layout decomposition process is activated automatically in order to create a zone list for the image before recognition.

The method utilizes the zone information to activate the appropriate recognition module on each zone. Each recognition module recognizes the image parts assigned to it in the zone list.

After all non-graphics zones on the page are recognized, the method collects the necessary information about the recognized characters into a homogenous structure, called the recognition result.

This method offers the services of the checking subsystem to either have suspect characters or words marked, or to allow auto-correction during the recognition process.

This method may activate one or more of the processes PID_RECOGNITION1, PID_RECOGNITION2, PID_RECOGNITION3.

Reference