I have searched but could not find any mention of using color charts for color correction in photos. I apologize if I have, inadvertently, overlooked one.
I see that I can use a single white pixel or patch to help correct white balance and, indeed, this is helpful but I am wondering if I can do more. I have the Datacolor SpyderCHECKR 24 color patch and used to make test shots with this in the photo. I know that other software has a very simple way of using the entire chart to optimize white balance correction. Though tedious, I could enter a list of true colors and then select the corresponding pixels in the photo. Does anyone know of an add-on or separate software that would take this information and return the optimized color temperature and tint correction for Affinity Photo. Having such a tool would enable me to get a good starting point for my processing of RAW files.
With thanks,
Robin