Contact Sheet

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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.

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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.

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Parameters

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cols

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

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rows

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

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sheet_width

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

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timecode

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

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Outputs

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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.

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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.

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Related nodes

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