Have a look at https://discuss.pixls.us/t/annoucement-of-dtlapse/19522
> Am 16.04.2024 um 09:59 schrieb Sébastien Chaurin > <sebastien.chau...@gmail.com>: > > > Hello all, > > Have any one of you guys wondered about how hard it'd be to implement > something similar to LRTimelapse ? > For those of you not aware of what this is, it's an additional app that looks > at xmp files from LR. It looks first within a folder with hundreds of pics > for a timelapse (in real life), at those images with only 5 stars. In this > exemple let's say we only have 5 images for our timelapse. > Let's imagine that we only have 2 of those, the first and the last, rated 5 > stars. and let's also assume there is only one module with one parameter that > has changed : exposure. > This app would look at the first 5 stars rated image and see the exposure > value of +0.5, and the second with a value of +0.9 hypothetically. > It would then look at how many images there are in between in the folder > (those not rated 5 stars) and divide the difference of the current setting by > the number of pics that sit in between these. 5 pics total minus the 2 rated > 5 stars leaves us with 3. > So in this toy example we only have 3 photos in between the key images (5 > stars), then we have > - difference in exposure : 0.9 - 0.5 = 0.4 > - 4 pics to arrive at that 0.9 value if we start from the first one : 0.4 / 4 > = 0.1 incremental step of exposure to be applied. > it would build xmp files for the 3 non 5 star rated pic with exposure values > respectively of 0.6, 0.7 and 0.8. The first one being 0.5, and the last 0.9. > This is assuming we have a linear progression, but I'm sure you can imagine > other types than linear. > > The idea is to adjust every parameter for the pics in between key images (5 > stars pics) so that in the end for the timelapse, there are smooth > transitions for every setting, exposure is usually one. > > Hopefully this little example makes sense ? The concept is I think easy to > understand : avoid editing possibly thousands of pictures with varying needs > in editing. You would only edit key images, and then it would ensure smooth > transitioning for all the in-between images, working out the incremental > steps it needs to put for every single setting to ensure that. > > I've used that a lot during my time with LR, and I've been thinking about > bringing this capability into DT. > > Food for thoughts at this stage, and of course happy to discuss this further. > I'm sure there will be many obstacles in making that a feature, but isn't it > also the challenge ? :) > > PS: LRtimelapse goes a little bit beyond this, but let's start "simple". > > Cheers, > Sébastien > > ____________________________________________________________________________ > darktable user mailing list to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org > = ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
