Hi, Camera firmwares that convert raw to jpeg internally rely on proprietary and undisclosed algorithms. Emulating these is not merely a game of tuning input parameters, we need to reverse-engineer what algorithms they use, in what color space, and in which order they are applied, and repeat × pictures profiles × camera models × camera brands.
Not to mention, manufacturers use their internal sensor knowledge to fine-tune algos, and we are in no position to compete by simple lack of access to this knowledge. darktable is already shipped with basic "basecurves" which emulate the overall tone/color intent of each brand using only its standard image profile, but they are limited, often inaccurate and no quality-control is performed on them. If people want to quickly get jpegs from their raws, any camera is provided with some proprietary piece of software that has much more educated guesses built-in than darktable, and knows about the camera firmware, such that you could get your camera jpeg back from your computer in no time. So I would say this : darktable is not a firmware emulator. We don't have the ressources to be, we already have an half-baked emulating method for what it's worth, and then what use would it be to mimic something that your camera already does better ? Designing a consistent raw workflow is enough work as it is, trying to take into account all the firmware discrepancies is simply madness in our context. Cheers, Aurélien. Le 30/08/2020 à 14:22, Chris Shelton a écrit : > > Some photographers work in jpg only and sometimes I would not > question their creative ability while maybe questioning the > technical choice although I suppose they do avoid the mistake of > overworking and gilding the lily > > I thought that the appeal of Darktable could be expanded to include > people like this by having a facility whereby raw images are batch > processed to create a set of jpg images in a similar way to the > way jpg images are created by in-camera processing, maybe in the > light table module; there would still be the option to work on a raw > image as normal. > > I'm a bit overworked myself at the moment and struggle with RSI as you > may deduce from the voice recognition I use . I did do C and C++ in > the 90s though it would take a while to get up to speed; maybe one day > > > ___________________________________________________________________________ > darktable developer mailing list to unsubscribe send a mail to > darktable-dev+unsubscr...@lists.darktable.org ___________________________________________________________________________ darktable developer mailing list to unsubscribe send a mail to darktable-dev+unsubscr...@lists.darktable.org
