The metadata.json have struct as:
{
"data": [
[{"input_image": [], "groundtruth": []}],
[{"input_image": [], "groundtruth": []}],
...
],
"confuse": [], # list of image path not have rigth format
"false": [], # list of folder path not have right format ex: data_temp\14\1303 Doylin Dr, Cary, NC\ex 22
}