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thumbnail-extraction

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Extracts the most interesting frames from video files for thumbnail compositing. Detects faces, expressions, smiles, and presentation slides. Outputs full frames, face crops, and transparent cutouts. Use when asked to extract thumbnails, find interesting frames, grab screenshots from video, or create thumbnail candidates from recordings.

thumbnail-extraction/SKILL.md

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Nov 11, 2026

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Nov 9, 2026
License
MIT

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# Video Thumbnail Extraction

## Overview
Automatically scan a local MP4 video (or YouTube URL via yt-dlp) and extract the 4 most visually interesting frames — prioritizing expressive faces (laughing, shocked, smiling) and engaging presentation slides. Outputs full frames, face crops, and background-removed transparent PNGs ready for compositing.

## When to Use
- Before creating YouTube thumbnails (feeds into `youtube-thumbnails` skill)
- When you need the best screenshot from a long video recording
- When compositing a thumbnail and need transparent guest cutouts
- Processing Zoom gallery recordings, interviews, or presentations

## Dependencies

### Python packages (install once)
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