Tiny COCO dataset

Generate a tiny coco dataset for training debug. The training and test sets each contain 50 images and the corresponding instance, keypoint, and capture tags. The dataset file structure as follows:

tiny_coco
    |-annotations
    |   |-instances_train2017.json
    |   |-instances_val2017.json
    |   |-...
    |
    |-train2017
    |   |-000000005802.jpg
    |   |-000000005803.jpg
    |   |-...
    |
    |-val2017
    |   |-000000005802.jpg
    |   |-000000005803.jpg
    |   |-...

split script

Reference from zhihu. You can re-slice the data size through the original coco dataset(18G) or the current tiny coco dataset