coco数据集格式

COCO 的jeson 文件:
"images": [{"file_name": "811000171.jpg", "height": 720, "width": 1280, "id": 811000171}, {"file_name": "811000131.jpg", "height": 720, "width": 1280, "id": 811000131}]
"type": "instances", "annotations":[
{"area": 92496, "iscrowd": 0, "image_id": 811000171, "bbox": [154, 262, 282, 328], "category_id": 0, "id": 1, "ignore": 0, "segmentation": [[154, 262, 154, 590, 436, 590, 436, 262]]}, 
{"area": 22428, "iscrowd": 0, "image_id": 811000171, "bbox": [234, 268, 126, 178], "category_id": 1, "id": 2, "ignore": 0, "segmentation": [[234, 268, 234, 446, 360, 446, 360, 268]]}
]
"categories": [{"supercategory": "none", "id": 0, "name": "clothes"}, {"supercategory": "none", "id": 1, "name": "rope"}]

coco:

---train
　　--images
　　　　--811000171.jpg
　　　　--811000131.jpg
　　 --annotatons
---val
　　--images
　　　　--811000171.jpg
　　　　--811000131.jpg
　　 --annotatons