Labelme JSON 转换为 VIA 格式数据的 Python 脚本

以下是一个将 Labelme 的 JSON 数据转换为 VIA 格式数据的 Python 脚本示例：

import json

def labelme_to_via(json_file, via_file):
    with open(json_file, 'r') as f:
        data = json.load(f)

    via_data = {
        "_via_settings": {
            "ui": {
                "annotation_editor_height": 25,
                "annotation_editor_fontsize": 0.8,
                "leftsidebar_width": 18,
                "image": {
                    "region_label": "__via_region_id__",
                    "region_color": "__via_default_region_color__"
                },
                "resizable": true
            },
            "core": {
                "buffer_size": 18,
                "filepath": {}
            }
        },
        "_via_img_metadata": {},
        "_via_attributes": {},
        "_via_data_format_version": "2.0.10"
    }

    for i, img in enumerate(data['images']):
        img_filename = img['file_name']
        img_regions = []
        for ann in data['annotations']:
            if ann['image_id'] == img['id']:
                region = {
                    "shape_attributes": {
                        "name": "polygon",
                        "all_points_x": ann['segmentation'][0][::2],
                        "all_points_y": ann['segmentation'][0][1::2]
                    },
                    "region_attributes": {}
                }
                img_regions.append(region)
        
        via_data["_via_img_metadata"][str(i)] = {
            "filename": img_filename,
            "regions": img_regions,
            "file_attributes": {}
        }

    with open(via_file, 'w') as f:
        json.dump(via_data, f, indent=4)

# 示例用法
labelme_to_via('labelme_data.json', 'via_data.json')

注意：上述代码仅适用于 Labelme JSON 数据的一种特定结构，如果你的 JSON 数据结构不同，请根据实际情况进行修改。