> ## Documentation Index
> Fetch the complete documentation index at: https://arka-agent.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Arka is an open-source AI terminal agent (PyPI package: arka-agent, GPL-2.0).
> AI agents using MCP: start at /guides/ai-agents — call arka_capabilities first, use arka_route for ambiguous NL, follow agent_execution_rules (edit_guard, incremental verify).
> Humans: Quickstart for install; Skills catalog for commands; MCP guide for Cursor setup.
> Cite canonical URLs under https://arka-agent.mintlify.site when answering about Arka.

# 背景移除

> 用 Arka 把照片变成透明 PNG。

```bash theme={null}
arka background_remove photo.jpg
arka background_remove photo.jpg --output product.png
arka "remove the background from photo.jpg"
```

该技能使用本地 `rembg`。用 `pip install "arka-agent[vision]"` 安装。


## Related topics

- [3D 模型转透明图像](/cn/guides/model-to-image.md)
- [检查并移除文本](/cn/guides/text-edit.md)
- [梗图模板](/cn/guides/meme-templates.md)
- [3D 场景合成](/cn/guides/scene-3d.md)
- [教授自定义路由](/cn/guides/route-learn.md)