segmentation/mmseg_custom/core/evaluation/panoptic_utils.py

# Copyright (c) OpenMMLab. All rights reserved.
# A custom value to distinguish instance ID and category ID; need to
# be greater than the number of categories.
# For a pixel in the panoptic result map:
#   pan_id = ins_id * INSTANCE_OFFSET + cat_id
INSTANCE_OFFSET = 1000