exricamtm(1)

📦 version 0.4, in nixos 26.05

🎀 NAME 🎀

okay bestie, this is exricamtm from the exricamtm(1) page in the General Commands Manual — it performs tone mapping on an OpenEXR image, specifically the iCAM kind. iconic. 💅✨

📸 SYNOPSIS 📸

exricamtm input.exr blur.exr output.exr

🌈 DESCRIPTION 🌈

So what it actually does: it performs the non-linear response compression portion of the iCAM tone mapping algorithm. That algorithm is described in this paper:

G.M. Johnson and M.D. Fairchild. Rendering HDR Images. IS&T/SID 11th Color Imaging Conference. 36-41 (2003)

And here are the important deets, bestie:

  • The input image should be normalized. 🫶
  • The whitepoint image should be at the same scale factor as the input image. fr fr, match the scale.
  • The output image should be normalized before viewing. 💖

👑 AUTHORS 👑

This masterpiece is by Billy Biggs <vektor@dumbterm.net>. 🎀

🔗 SEE ALSO 🔗

this page comes from exrtools 0.4, dated December 2003 — that’s the source/version and date, bestie, mwah 💋✨

📦 where this page comes from