| # Preprocessing COCO | |
| ### Download raw images and annotations | |
| ````shell | |
| 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 | |
| unzip ./train2017.zip | |
| unzip ./val2017.zip | |
| unzip ./annotations_trainval2017.zip | |
| cd pycocotools && make && cd .. | |
| ```` | |
| ### Crop & Generate data info (~20 min) | |
| ````shell | |
| #python par_crop.py -h | |
| python par_crop.py --enable_mask --num_threads 24 | |
| python gen_json.py | |
| ```` | |