ImageGear for .NET
Recognition Modules and Filters
| ImageGear for .NET User Guide > Using ImageGear for .NET > Using ImageGear.Recognition Namespace > Recognition Namespace Specifications > Specifications for the Recognition Modules > Recognition Modules and Filters |
Narrowing the Character Set has two effects:
The filtering system allows the Language environment to be narrowed, by enabling only certain character classes, and also by enabling individual characters. A filter is built up from filter elements, as detailed under ImGearRecFilter.
Each filter element name tells which character class is enabled, e.g., ALL means no filtering. Not all recognition modules interpret all filter elements. Precise information appears in the sub-heading for each module.
Applying a filter may not always enable the same number of characters. E.g., MISCELLANEOUS can enable only those miscellaneous characters supported by the recognition module assigned to the zone.