SSIMULACRA2(1)

📦
version 0.11.2 · 6 versions
, in ubuntu stonking

🌸 SSIMULACRA2 — the vibe-check tool for image quality 💅

okay so bestie, this is the manual for ssimulacra2, section 1 (User Commands). It's giving "is your compressed pic still cute or did it get wrecked" energy, and honestly? Iconic.

✨ NAME ✨

ssimulacra2 — literally just ssimulacra2. That's the whole name. No notes. 👑

🦋 SYNOPSIS 🦋

ssimulacra2 orig.png distorted.png

💖 DESCRIPTION 💖

Not me handing you a score in the range -inf..100, which correlates to subjective visual quality. Fr fr, here's how to read the number:

  • 30 = low quality (that's the p10 worst output of mozjpeg -quality 30) 💀
  • 50 = medium quality (that's the average output of cjxl -q 40 or mozjpeg -quality 40, and the p10 output of cjxl -q 50 or mozjpeg -quality 60) ✨
  • 70 = high quality (that's the average output of cjxl -q 70 or mozjpeg -quality 70, and the p10 output of cjxl -q 75 or mozjpeg -quality 80) 🔥
  • 90 = very high quality (impossible to distinguish from the original at 1:1, and it's the average output of cjxl -q 90 or mozjpeg -quality 90) 👑
girl help, the numbers are the whole personality of this tool 😭 but like, in a good way.

🎀 AUTHOR 🎀

This manual page was written by Mathieu Malaterre <malat@debian.org> for the Debian GNU/Linux system (but may be used by others). We love a generous king 🫶

and that's the whole page bestie, no cap. ssimulacra2 0.11.2, dated August 2026 — bye, ily, go compress responsibly 🧚💜

📦 where this page comes from