Create an empty region.
The operator gen_empty_region creates an empty region. This means that the output parameter contains an object. Thus, count_obj returns 1. The area of the region is 0. Most of the shape features are undefined (0). It should be noted that an empty region must not be confused with the empty tuple.
|
EmptyRegion (output_object) |
region -> object |
| Empty region (no pixels). | |
gen_empty_region is reentrant and processed without parallelization.
Region processing
