MS-COCO

https://cocodataset.org/

MS-COCO 2017

root=data/coco
mkdir -p ${root} && cd ${root}
wget http://images.cocodataset.org/zips/train2017.zip
wget http://images.cocodataset.org/zips/val2017.zip
wget http://images.cocodataset.org/annotations/annotations_trainval2017.zip
for f in *.zip; do unzip -q ${f}; done
cd ../..

data/coco/
├── annotations
│   ├── instances_train2017.json
|   └── instances_val2017.json
├── train2017
│   ├── 000000000009.jpg
│   └── ...
└── val2017
    ├── 000000000139.jpg
    └── ...