> For the complete documentation index, see [llms.txt](https://morphic.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://morphic.com/docs/zh/cao-zuo-zhi-nan/extend-video.md).
# 扩展视频
下面是关于如何在 Morphic 上使用“将最后一帧提取到 Canvas”来扩展视频的分步指南：
1. 上传或生成你想在 Canvas 上扩展的视频
2. 右键点击视频，选择“将最后一帧提取到 Canvas”
3. 将新提取的帧作为起始帧，然后运行 [Image to Video](/docs/zh/shi-pin/image-to-video.md) 以生成延续该视频的后续片段
右侧为提取的帧
Image to Video
4. 根据需要重复第 2 和第 3 步，生成可拼接在一起的更多片段
5. 一旦你有了所有片段，前往 Compose 将它们拼接起来
6. 将 Assets 部分中所有生成的片段拖放到时间线上
7. 使用右上角的 Export 按钮导出最终拼接后的视频（最高可达 4K 分辨率）
### 提取任意帧，而不只是最后一帧
“将最后一帧提取到 Canvas”始终会提取最终帧。若想提取某个特定时刻，请使用“将帧提取到 Canvas”。
下面是一个快速教程，教你如何在 Morphic 上从视频中提取当前帧：
{% embed url="" %}
1. 点击 Canvas 上的视频以选中它
2. 拖动屏幕底部的播放头，定位到你想要的帧
3. 右键点击视频，选择“将帧提取到 Canvas”
该帧会作为一张独立图片出现在 Canvas 上，可供编辑、用作参考，或输入到另一次生成中。
这就是在 Morphic 上使用“将最后一帧提取到 Canvas”轻松创建视觉一致的扩展镜头的方法。
***
如果您遇到任何问题或有任何疑问，欢迎随时联系我们。我们很乐意为您提供帮助。请写信至 [**support@morphic.com**](mailto:support@morphic.com)**.**
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