106 lines
3.2 KiB
Python
106 lines
3.2 KiB
Python
import pycocotools.coco
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import argparse
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import logging
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import os
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import pprint
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import sqlite3
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger("coco")
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argParser = argparse.ArgumentParser(description='Create shape SVG\'s')
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argParser.add_argument(
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'--annotations',
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type=str,
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default='../../datasets/COCO/annotations/instances_val2017.json'
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)
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argParser.add_argument(
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'--categories',
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action='store_true',
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help='Show categories'
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)
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argParser.add_argument(
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'--propagate',
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type=str,
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metavar='DATABASE',
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help='Store data in sqlite db'
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)
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args = argParser.parse_args()
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logger.info(f"Load {args.annotations}")
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coco = pycocotools.coco.COCO(args.annotations)
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if args.categories:
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cats = {}
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for id, cat in coco.cats.items():
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if cat['supercategory'] not in cats:
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cats[cat['supercategory']] = []
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cats[cat['supercategory']].append(cat)
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# pp = pprint.PrettyPrinter(indent=4)
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pprint.pprint(cats, sort_dicts=False)
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if args.propagate:
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if not os.path.exists(args.propagate):
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con = sqlite3.connect(args.propagate)
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cur = con.cursor()
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with open('coco.sql', 'r') as fp:
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cur.executescript(fp.read())
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con.close()
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con = sqlite3.connect(args.propagate)
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logger.info("Create categories")
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cur = con.cursor()
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cur.executemany('INSERT OR IGNORE INTO categories(id, supercategory, name) VALUES (:id, :supercategory, :name)', coco.cats.values())
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con.commit()
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logger.info("Images...")
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cur.executemany('''
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INSERT OR IGNORE INTO images(id, flickr_url, coco_url, width, height, date_captured)
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VALUES (:id, :flickr_url, :coco_url, :width, :height, :date_captured)
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''', coco.imgs.values())
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con.commit()
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logger.info("Annotations...")
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def annotation_generator():
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for c in coco.anns.values():
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ann = c.copy()
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ann['bbox_top'] = ann['bbox'][1]
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ann['bbox_left'] = ann['bbox'][0]
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ann['bbox_width'] = ann['bbox'][2]
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ann['bbox_height'] = ann['bbox'][3]
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yield ann
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cur.executemany('''
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INSERT OR IGNORE INTO annotations(id, image_id, category_id, iscrowd, area, bbox_top, bbox_left, bbox_width, bbox_height)
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VALUES (:id, :image_id, :category_id, :iscrowd, :area, :bbox_top, :bbox_left, :bbox_width, :bbox_height)
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''', annotation_generator())
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con.commit()
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logger.info("Segments...")
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def segment_generator():
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for ann in coco.anns.values():
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for i, seg in enumerate(ann['segmentation']):
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yield {
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'id': ann['id']*10 + i, # create a uniqe segment id, supports max 10 segments per annotation
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'annotation_id': ann['id'],
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'points': str(seg)[1:-1],
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}
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cur.executemany('''
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INSERT OR IGNORE INTO segments(id, annotation_id, points)
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VALUES (:id, :annotation_id, :points)
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''', segment_generator())
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con.commit()
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logger.info("Done...")
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# for id, cat in coco.cats.items():
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# cur = con.cursor()
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# cur.execute |