ART Tone Curves - Base Curve - A Round of Applause

Software ART
1

Hi,

I just wanted to give a huge round of applause to I assume Alberto for implementing the Base Curve functionality in ART. You see, there are many solutions to highlights rolloff, but few of them achieve the goal of seamless highlights compression, like color negative/B&W film does.

Then there’s the base curve in ART. Therein lies the solution to my highlights headaches: a proper filmic rendering of HDR (14-bit) RAW images.

Yucky street light highlight, tone mapping off:

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image428×393 63 KB

Totally not yucky street light highlight, base curve enabled:

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image471×443 74.1 KB

Great job Alberto and thank you for this elegant solution!

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You’re welcome :slight_smile:
Btw, the rolloff formula, as described in the code, comes originally from GitHub - thatcherfreeman/utility-dctls: My creative and util DCTLs.

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Thatcher Freeman makes really great and usefull DCTLs, some of which I use in DaVinci Resolve.

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