最近在做MaskRCNN
在自己的數據（labelme）轉為COCOjson格式遇到問題：TypeError: Object of type 'int64' is not JSON serializable
原因是numpy的數據類型不能被json兼容
最簡單的做法是自己寫一個序列類
class MyEncoder(json.JSONEncoder):def default(self, obj):if isinstance(obj, numpy.integer):return int(obj)elif isinstance(obj, numpy.floating):return float(obj)elif isinstance(obj, numpy.ndarray):return obj.tolist()else:return super(MyEncoder, self).default(obj)
it looks like?
json?is telling you that an?intisn't serializable, but really, it's telling you that this particular np.int32 (or whatever type you actually have) isn't serializable.The easiest workaround here is probably to?write your own serializer
?
