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# NormalizeVideoLatentStart - ComfyUI Built-in Node Documentation

> Complete documentation for the NormalizeVideoLatentStart node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/NormalizeVideoLatentStart/en.md)

This node adjusts the first few frames of a video latent to make them look more like the frames that come after. It calculates the average and variation from a set of reference frames later in the video and applies those same characteristics to the starting frames. This helps create a smoother and more consistent visual transition at the beginning of a video.

## Inputs

| Parameter               | Data Type | Required | Range      | Description                                                                      |
| ----------------------- | --------- | -------- | ---------- | -------------------------------------------------------------------------------- |
| `latent`                | LATENT    | Yes      | -          | The video latent representation to process.                                      |
| `start_frame_count`     | INT       | No       | 1 to 16384 | Number of latent frames to normalize, counted from the start (default: 4).       |
| `reference_frame_count` | INT       | No       | 1 to 16384 | Number of latent frames after the start frames to use as reference (default: 5). |

**Note:** The `reference_frame_count` is automatically limited to the number of frames available after the starting frames. If the video latent is only 1 frame long, no normalization is performed and the original latent is returned unchanged.

## Outputs

| Output Name | Data Type | Description                                                     |
| ----------- | --------- | --------------------------------------------------------------- |
| `latent`    | LATENT    | The processed video latent with the starting frames normalized. |