CVAT生成的多个coco标签合并成为一个代码
时间: 2023-10-01 09:09:14 浏览: 35
您可以使用以下代码将CVAT生成的多个COCO标签合并为一个:
```python
import json
# 读取CVAT生成的多个COCO标签文件
label_files = ['label1.json', 'label2.json', 'label3.json'] # 替换为您的标签文件名
combined_annotations = {
"info": {},
"licenses": [],
"images": [],
"annotations": [],
"categories": []
}
# 合并images和annotations
image_id = 1
annotation_id = 1
for label_file in label_files:
with open(label_file, 'r') as f:
data = json.load(f)
# 合并images
for image in data['images']:
image['id'] = image_id
combined_annotations['images'].append(image)
image_id += 1
# 合并annotations
for annotation in data['annotations']:
annotation['id'] = annotation_id
combined_annotations['annotations'].append(annotation)
annotation_id += 1
# 合并categories
categories = {}
category_id = 1
for label_file in label_files:
with open(label_file, 'r') as f:
data = json.load(f)
for category in data['categories']:
category_name = category['name']
if category_name not in categories:
category['id'] = category_id
categories[category_name] = category_id
combined_annotations['categories'].append(category)
category_id += 1
# 更新annotations中的category_id
for annotation in combined_annotations['annotations']:
old_category_id = annotation['category_id']
category_name = next(
(category['name'] for category in combined_annotations['categories'] if category['id'] == old_category_id),
None)
if category_name:
new_category_id = categories[category_name]
annotation['category_id'] = new_category_id
# 保存合并后的标签文件
with open('combined_labels.json', 'w') as f:
json.dump(combined_annotations, f)
```
请将`label_files`列表替换为您的标签文件名列表。将该代码保存为一个Python脚本,并将标签文件和脚本放在同一目录下。运行代码后,它将生成一个名为`combined_labels.json`的文件,其中包含合并后的标签数据。