CorridorKey Green Screen Keying Skill by ara.so — Daily 2026 Skills collection. CorridorKey is a neural network that solves the color unmixing problem in green screen footage. For every pixel — including semi-transparent ones from motion blur, hair, or out-of-focus edges — it predicts the true straight (un-premultiplied) foreground color and a clean linear alpha channel. It reads/writes 16-bit and 32-bit EXR files for VFX pipeline integration. How It Works Two inputs required per frame: 1. RGB green screen image — sRGB or linear gamma, sRGB/REC709 gamut 2. Alpha Hint — rough coarse B&W mask (…