Converting LOG ProRes4444 to Linear in Color

[Wyatt Garfield]

I'm having a hell of a time finding a way to do convert ProRes4444 LOG footage to Linear color space in Apple Color.

It seems the built-in Log-to-Linear conversion in "Color" is reserved for DPX and Cineon files, as both have "Headers" which can be flagged as Logorithmic.

I'm hoping someone knows a way around this (besides just correcting with gamma/curves, which I've tested but is time consuming and not as clean as a real Log-Lin conversion).

The best thing I can think of is a Log-to-Linear Look Up Table (LUT), but I can't seem to find one that is Color Compatible (.mga) I know they exist, but where do I find such a LUT???

As far as advice goes, lets try to keep it within a Final-Cut / Color workflow, as I'm sure there are lots of applications and hardware packages that have solutions. If however, anyone knows of a software package that has a Log-Lin LUT included, let me know. The next question would be how to convert it into a .mga format for use in Color.

Thanks!

 

[Ben Brainerd]

I have yet to find a catch-all Log-To-Lin LUT. To be honest, I'm pretty sure they don't exist, mainly because there are different flavors of Log out there.

There are a number of services out there that will allow you to roll your own MGA LUT. Depending on your needs, you can also build a LUT using Color itself. It won't be mathematically perfect, but it'll do the trick. I'm pretty sure the info's in the user manual, though I'm not at my work machine to check.