BLIND-SET-ALPHA(1)

🎀 blind-set-alpha(1) 🎀

okay bestie, welcome to blind-set-alpha from the General Commands Manual, section 1 — it’s literally here to multiply the alpha channel of a video. slay. 💅✨

🌸 NAME 🌸

blind-set-alpha — Multiply the alpha channel of a video. 🎀

✨ SYNOPSIS ✨

blind-set-alpha [-i] alpha-stream

💖 DESCRIPTION 💖

So here’s the vibe: blind-set-alpha reads a video from stdin and a mask video from alpha-stream. The video gets printed to stdout, with each alpha value multiplied by the product of the luminosity and the alpha value of the corresponding pixel and frame in the mask video. obsessed. 🦋

If stdin is longer than alpha-stream, the remainder of stdin is printed without any changes. No cap. ✨

If stdin is shorter than alpha-stream, the remainder of alpha-stream is ignored — but heads up, it may be partially read. 💀

💅 OPTIONS 💅

• -i — Use the inverse luminosity of the mask video instead of the luminosity. It is still multiplied by the alpha value. 🎀

🦋 SEE ALSO 🦋

• blind(7)
• blind-single-colour(1)
• blind-dissolve(1)
• blind-arithm(1)
• blind-set-luma(1)
• blind-invert-luma(1)
• blind-set-saturation(1)

👑 AUTHORS 👑

• Mattias Andrée <maandree@kth.se> 💖

---

That’s the whole page, bestie — signed off by blind 1.1 (the source/version in the footer) and the BLIND-SET-ALPHA(1) page label. There’s no date in this footer, so I’m not inventing one, periodt. 💖✨