Return the complement of a region.
complement determines the complement of the input region(s).
If the system flag 'clip_region' is 'false' (see set_system) the complement is done virtually by setting the complement flag of Region to TRUE. For succeeding operations the de Morgan laws are applied while calculating results.
If the system flag 'clip_region' is 'true' the difference of the largest image processed so far (see reset_obj_db) and the input region is returned.
|
Region (input_object) |
region(-array) -> object |
| Input region(s). | |
|
RegionComplement (output_object) |
region(-array) -> object |
| Complemented regions. | |
| Number of elements: RegionComplement == Region | |
complement always returns the value 2 (H_MSG_TRUE). The behavior in case of empty input (no regions given) can be set via set_system('no_object_result',<Result>) and the behavior in case of an empty input region via set_system('empty_region_result',<Result>). If necessary, an exception handling is raised.
complement is reentrant and automatically parallelized (on tuple level).
threshold, connection, regiongrowing, pouring, class_ndim_norm
difference, union1, union2, intersection, reset_obj_db, set_system
Region processing
