> ## Documentation Index
> Fetch the complete documentation index at: https://comfytv.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Contact Sheet

> Lay out evenly-sampled frames from a video into a single grid image — a review "宫格" / contact sheet for scanning a clip at a glance.

<Frame caption="Contact Sheet · screenshot coming soon">
  <img src="https://mintcdn.com/comfytv/dMkMxJDZdIo4YzAU/images/nodes/_placeholder.svg?fit=max&auto=format&n=dMkMxJDZdIo4YzAU&q=85&s=b54171099e5b02d4313fe581171ebbcc" alt="Contact Sheet" width="800" height="450" data-path="images/nodes/_placeholder.svg" />
</Frame>

## What this node does

**Contact Sheet** samples frames across a `COMFYTV_VIDEO` and tiles them into one grid `COMFYTV_IMAGE`. You choose the grid size and output width and whether to stamp timecodes, then press **▶ Run** (an ffmpeg pass on the server). The result is a single image you can review, save, or export.

The number of tiles is `cols × rows`, sampled evenly across the clip's duration.

## When to use it

* Get a one-image overview of a whole clip for review or approval.
* Build a quick storyboard-style sheet from footage.
* Compare framing/lighting across a scene at a glance.

## Parameters

### cols

Number of columns in the grid, 1–12, default 4.

### rows

Number of rows in the grid, 1–12, default 4. With the default, that's 16 frames sampled evenly.

### sheet\_width

Output image width in pixels, 320–8192, default 1920. Tile size follows from this and the column count.

### timecode

Boolean, default on. When on, each tile is stamped with its source timecode.

## Outputs

| Output    | Type            | Meaning                          |
| --------- | --------------- | -------------------------------- |
| **image** | `COMFYTV_IMAGE` | The assembled contact-sheet grid |

## Tips

* More tiles (higher cols × rows) means finer coverage but smaller thumbnails — raise `sheet_width` to keep them readable.
* Keep `timecode` on for review sheets so you can jump back to the exact moment in the source clip.
* This samples evenly across the full duration; for one frame per *shot* instead, use **Scene Detect** and then a sheet of those.

## Types and bridges

`COMFYTV_VIDEO` / `COMFYTV_IMAGE` are ComfyTV project snapshots, not native ComfyUI types. Use a **Bridge** (`ComfyTV/Bridge`) to interoperate with native nodes. See [bridges.md](https://github.com/jtydhr88/ComfyTV/blob/main/docs/bridges.md).

## Related nodes

* **Scene Detect** — one thumbnail per detected shot instead of even sampling.
* **Video Scopes** — measurement scopes for a single frame.