bobosola wrote:Thanks very much for doing this work. I dropped both into my LUT folder and could use them like a LUT immediately.
lrose69 wrote:Whoah! You rock dude. Thanks. I'll give these a try
Always happy to help
bobosola wrote:I assume both are for the GoPro Protune flat colour profile, but one is for use with 'Native' WB and the other for use with 'Auto' WB? Is that right?
The first one is specifically for Protune Native
The second one is for use with Protune and "auto", or one of the other White Balances, as long as it's not Native. The color gamut of these settings is Rec.709
Unfortunately GoPro confuses a lot of people with their terminology.
Protune and GoPro Color are referencing Gamma curves.
Native covers a particular color space and all the other white balances cover a Rec.709 color space.
bobosola wrote:Sorry for my confusion here but I have little knowledge of DCTLs and what they do exactly. I believe in this case that they offer a true mathematical colour transform as opposed to a LUT which can only offer lookup values at fixed intervals (and thus must interpolate for in-between values)?
You've understood about right.
Hence why talking about LUTs when DCTLs are mentioned is the equivalent of bringing a knife to a gunfight