# 扩展视频

以下是在 Morphic 上使用“将最后一帧提取到画布”来延长视频的逐步指南：

1. 在画布上上传或生成您要延长的视频

<figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2F1DE3s7U8GLVMv1OlVirk%2FCleanShot%202026-01-18%20at%2017.56.25%402x.png?alt=media&#x26;token=3e0303c3-c6cb-4322-abf2-bd2e2880d5fd" alt=""><figcaption></figcaption></figure>

2. 右键单击视频并选择“将最后一帧提取到画布”

<figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2FtQmHgxU9R6ixT9eOu0zJ%2FCleanShot%202026-01-18%20at%2017.57.27%402x.png?alt=media&#x26;token=401db0c9-540a-4590-ba7f-d9abb0bf553b" alt=""><figcaption></figcaption></figure>

3. 将新提取的帧用作起始帧，然后运行 [图像到视频](https://morphic.com/docs/zh/shi-pin/image-to-video) 以生成延长视频的后续剪辑

<div><figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2Fv01pg262JTNnYPv7qEnI%2FCleanShot%202026-01-18%20at%2017.57.48%402x.png?alt=media&#x26;token=cfe3884a-85c1-4df8-b116-fc8a6a460727" alt=""><figcaption><p>右侧的提取帧</p></figcaption></figure> <figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2Fx2hB0SPWcSMnMTBQQ5ag%2FCleanShot%202026-01-18%20at%2018.04.18%402x.png?alt=media&#x26;token=593e59c8-9ce3-45bb-b320-779822b19800" alt=""><figcaption><p>图像到视频</p></figcaption></figure></div>

4. 根据需要重复步骤 2 和 3 以生成可拼接的附加剪辑
5. 当您拥有所有剪辑后，转到“合成”以将它们拼接在一起

<figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2FcKqXHQ3orngDajmsltBb%2FCleanShot%202026-01-18%20at%2018.12.54%402x.png?alt=media&#x26;token=c6875cce-78e2-43c5-bf26-d45d925d5763" alt=""><figcaption></figcaption></figure>

6. 将资产部分中所有生成的剪辑拖放到时间轴上

<figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2F1i5S0UPYzRLdEWAvUC8g%2FCleanShot%202026-01-18%20at%2018.13.44%402x.png?alt=media&#x26;token=c04a0585-993d-4c98-9ccc-d293a8c582de" alt=""><figcaption></figcaption></figure>

7. 使用右上角的“导出”按钮导出最终拼接后的视频（最高支持 4K 分辨率）

<figure><img src="https://2197859893-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoPhHCbNZdzW70rakoLhf%2Fuploads%2Fw1DRqnqLFxswu5fpm7S5%2FCleanShot%202026-01-18%20at%2018.06.07%402x.png?alt=media&#x26;token=1b1fc479-16e4-490d-ae73-62a019d354dd" alt=""><figcaption></figcaption></figure>

这就是在 Morphic 上使用“将最后一帧提取到画布”轻松创建具有视觉一致性的延长镜头的方法。

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