Combine json files containing COCO person keypoint annotations

问题

I've annotated some images using the coco-annotator. I'd like to combine these annotations with the existing one ("person_keypoints_train2017.json" and "person_keypoints_val2017.json").

Has anyone ever managed to do so? If yes, how? (preferrably using python)

回答1:

json vlaues can be accessed using the json module try reading both the files and hence decide what values to combine:

import json
from collections import OrderedDict
filename1 = "person_keypoints_train2017.json"
with open(filename1) as f:
    data_filename1 = json.load(f, object_pairs_hook=OrderedDict)
filename2 = "person_keypoints_val2017.json"
with open(filename1) as f:
    data_filename2 = json.load(f, object_pairs_hook=OrderedDict)

now you have two dictionaries, you can manipulate data. In order to save them to the file:

    with open(file_name, 'w') as outfile:
    json.dump(data, outfile, separators=(',', ':'))

来源：https://stackoverflow.com/questions/58095457/combine-json-files-containing-coco-person-keypoint-annotations