Detection to Panoptic Segmenetaion Converter creates blank images and no segmenetation coordinates

[animikhaich]

In an attempt to convert COCO detection annotations to Panoptic Segmentation, I am getting the following output:

• The Generated PNG images are nothing but black images, no segments are visible
• The COCO Panoptic Annotation Generated JSON contains "segments_info": [] (Empty List) for all images.

Command used to convert:

python converters/detection2panoptic_coco_format.py \
  --input_json_file /media/Data/Documents/Python-Codes/data/reading_order_dataset/complex/textline/via_export_coco.json \
  --output_json_file /media/Data/Documents/Python-Codes/data/reading_order_dataset/complex/textline/coco_panoptic.json

I have attached a sample of the files below:

• Input COCO Detection JSON with BBox and Segmentation Coordinates:
  
• Output Panoptic Segmentation JSON with empty "segments_info":
  
• Output generated Sample PNG which is completely blank black image:
  

Please let me know what I am doing wrong and how to fix this.

[ghost]

@alexander-kirillov @ppwwyyxx