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#apertus IRC Channel Logs

2022/10/26

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00:06
Spirit532
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00:54
polyrhythm
vup: while this page is really long, I think it's quite informative about the different options at play when it comes to profiling a digitcal camera (whether DNG or some other format): https://torger.se/anders/dcamprof.html#camera_model
00:56
polyrhythm
with regards to if there is "one correct way" to profile etc. if we're talking a scientific camera, then yes, there is. or if we're talking a camera where we expect users to do 100% of the legwork in the look, then also yes, there is basically just getting it clinically right. but if we consider how film emulsion was developed, or how most cinema cameras are created, there is a bit of subjective development even in the profiling step
00:56
polyrhythm
regarding the DeltaE questions, i basically don't know...Resolve doesn't publish how those percentages work, so I'm not treating it as a number I can use empirically
00:57
polyrhythm
we should definitely use a well-defined thing to ascertain how close our profiles are.
00:58
polyrhythm
another good link: https://discuss.pixls.us/t/the-quest-for-good-color-1-spectral-sensitivity-functions-ssfs-and-camera-profiles/18002
00:58
polyrhythm
this guy went and build his own SSF measurement protocol on the cheap and also went through various profiling trials
01:00
polyrhythm
the only caveat i'll give to both of these links is that they are both centered on the idea of profiling stills cameras, and the software people typically use to edit photos. video-land is a little different in that colorspace management becomes more important, along with concepts like log curves and other things that basically don't exist in stills. video tends to need to be more "robust" in terms of not breaking under various conditions because
01:00
polyrhythm
you're not editing a series of independent frames; and the footage needs to work with other cameras too
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Chaim
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Chaim
Hi
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Chaim
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Spirit532
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