前置步骤：
1、抠图1:
- 上传: https://aiart.chuangkit.com/editor/koutu?fmodule=tool_box&fpage=home
- 抠图结果: blob:https://mater.chuangkit.com/xxxx
- 上传: https://cutout.designkit.com/?channel=kllbd141&bd_vid=9549066288582911630
- 抠图结果: 纯色栏 blob:https://cutout.designkit.com/xxxx
2、无损放大: https://www.designkit.com/upscale/