TypeError when running cityscapes_panoptic_converter.py about panopticapi

[alexander-kirillov]

This error should be fixed now. Can you try it again?

[mitalbert]

@alexander-kirillov I have the same issue.

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Traceback (most recent call last):
File "cityscapes_gt_converter/cityscapes_panoptic_converter.py", line 119, in
panoptic_converter(original_format_folder, out_folder, out_file)
File "cityscapes_gt_converter/cityscapes_panoptic_converter.py", line 116, in panoptic_converter
save_json(d, out_file)
File "/home/user/.local/lib/python3.7/site-packages/panopticapi/utils.py", line 99, in save_json
json.dump(d, f)
File "/usr/lib/python3.7/json/init.py", line 179, in dump
for chunk in iterable:
File "/usr/lib/python3.7/json/encoder.py", line 431, in _iterencode
yield from _iterencode_dict(o, _current_indent_level)
File "/usr/lib/python3.7/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/usr/lib/python3.7/json/encoder.py", line 325, in _iterencode_list
yield from chunks
File "/usr/lib/python3.7/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/usr/lib/python3.7/json/encoder.py", line 325, in _iterencode_list
yield from chunks
File "/usr/lib/python3.7/json/encoder.py", line 405, in _iterencode_dict
yield from chunks
File "/usr/lib/python3.7/json/encoder.py", line 438, in _iterencode
o = _default(o)
File "/usr/lib/python3.7/json/encoder.py", line 179, in default
raise TypeError(f'Object of type {o.class.name} '
TypeError: Object of type int64 is not JSON serializable

The output json files contains all images till {"id": "munster_000173_000019", "width": 2048, "height": 1024, "file_name": "munster_000173_000019_leftImg8bit.png"}], and the first attempt of annotations:

... "annotations": [{"image_id": "frankfurt_000000_000294", "file_name": "frankfurt_000000_000294_gtFine_instanceIds.png", "segments_info": [{"id": 8405120, "category_id": 7, "area":

[mitalbert]

I fixed it by converting numpy int64 to python integer.

Added the

bbox = [x, y, width, height]; int_bbox = [int(value) for value in bbox]

And changed "area": area, to
"area": int(area),

[zhangliyun9120]

@Yuyan-Li

I found a solution here:

https://blog.csdn.net/Zhou_yongzhe/article/details/87692052

tested ok!

pls refer to that.