this post was submitted on 09 May 2024
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Woah I’ve never heard of inverse tone mapping. I always assumed HDR metadata was burned into the file, didn’t realize it could be “faked.” Fascinating. What settings do you use if you don’t mind me asking?
My current MPV config is here (in the NixOS syntax but it should be understandable). The profile is what applies the SDR->HDR effect, only if the video is in SDR.
I have target-peak set to 550 nits which seems okay, but I have control + scroll wheel bound to turn it up and down. If you go to ~~200 or below it seems to disable the effect, which is good for 2D animated content.~~ EDIT: even with inverse-tone-mapping disabled this still messes up the image. You need to actually disable the inverse-tone-mapping and then set target peak to either auto or something above 200 in order to actually disable it. You can check with --tone-mapping-visualize.
I also generally turn the saturation up to like 15 or 30 or something since it can look washed out. Gamma looks best at 0 generally, but in dark scenes to combat blooming I might turn it up to like 5 or 10. I haven't messed too much with the tone mapping curve but I'm using what the documentation says is recommended so it seems good.
Very cool! Thanks for sharing, I’m definitely going to play around with this.