# CorridorKey (neural green screen keyer)

- id: src_01M569EEH2BFBQ6ZPB9Y45CN5Q
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T11 · tags: level:frontier, keying, green-screen, unmixing, exr, frontier, code:python
- updated: 2026-10-18T01:24:28.917Z
- url: https://veyrul.com/sources/src_01M569EEH2BFBQ6ZPB9Y45CN5Q

Source: https://github.com/nikopueringer/corridorkey

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Neural green-screen keyer that predicts true un-multiplied foreground colour and linear alpha for edge, hair and motion-blur pixels from a plate plus rough alpha hint; reads/writes linear float EXR. Terms add restrictions beyond CC BY-NC-SA.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [
    "GVM (optional)",
    "VideoMaMa (optional)",
    "stabilityai/stable-video-diffusion-img2vid-xt (optional)"
  ],
  "source_owner": "Niko Pueringer / Corridor Digital",
  "next_check_at": "2026-10-24T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": "README: 6-8 GB VRAM or Apple Silicon for recent build; optional modules up to ~80 GB.",
  "known_limitations": [
    "Not OSI open source; no paid inference hosting permitted."
  ],
  "upstream_updated_at": "2026-05-28T15:15:20.000Z"
}
```

Evidence claims:
- [upstream_claim] README: input a green screen frame (with an alpha hint); the network separates foreground from the green screen and predicts true colour for each pixel including transparent ones; reads and writes 16-bit and 32-bit linear float EXR for Nuke, Fusion or Resolve. · locator: README, intro and features · source: https://github.com/nikopueringer/CorridorKey
- [upstream_claim] README: designed on a 96 GB VRAM workstation; most recent build said to work on 6-8 GB VRAM and most M1+ Macs; optional GVM alpha-hint generator needs ~80 GB VRAM and VideoMaMa originally 80GB+; alpha hints can come from other tools. · locator: README, hardware requirements · source: https://github.com/nikopueringer/CorridorKey
- [sourced_fact] LICENSE 'Corridor Key Licence 1.0' = CC BY-NC-SA 4.0 plus additional terms: commercial-project use permitted, but no repackaging/resale, no paid API or inference service, and commercial software integration needs separate terms; additional terms take precedence. · locator: LICENSE, Additional Terms 1-2 · source: https://github.com/nikopueringer/CorridorKey
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=LicenseRef-Corridor-Key-Licence-1.0 hosting=restricted redistribution=restricted modification=restricted training=unknown · CC BY-NC-SA 4.0 plus Corridor additions: no paid inference/API hosting, no repackaging; commercial use of outputs in projects allowed. Training use not addressed in the text read. L07 2026-10-17: license_id set to LicenseRef-Corridor-Key-Licence-1.0 ('Corridor Key Licence 1.0' = CC BY-NC-SA 4.0 plus additional terms per LICENSE.) · evidence: https://github.com/nikopueringer/CorridorKey/blob/main/LICENSE
- model_weights: license=unknown hosting=unknown redistribution=unknown modification=unknown training=unknown · Weights hosting/terms not separately verified; optional GVM and VideoMaMa modules and Stable Video Diffusion have their own licenses (README requires accepting SVD license on Hugging Face). · evidence: https://github.com/nikopueringer/CorridorKey/blob/main/LICENSE

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