Since Detectron2 based models for textline segmentation have appeared, we should support them by adding a operation_level=region. Also, the cat2class mapping must be extended by TextLine type to allow its use in the categories parameter.
(However, ideally there should be some kind of consistency checking between categories and operation_level: tables can only be added on page level, cells only on tables, lines only on text regions...)
Since Detectron2 based models for textline segmentation have appeared, we should support them by adding a
operation_level=region. Also, thecat2classmapping must be extended byTextLinetype to allow its use in thecategoriesparameter.(However, ideally there should be some kind of consistency checking between
categoriesandoperation_level: tables can only be added on page level, cells only on tables, lines only on text regions...)