You mean the right side of the image? Youâre right.
I have to review my capturing setup. I suspect it has to do with lens vignetting, but it could also be some kind of light leak, since I had a well lit window at right. Maybe I have to do the shooting at night.
For the moment, I have no real experience, but as my friend told me, even with an adapter as identified above, lighting is critical ( uniform lihgting, CRIâŚ).
I think you have to avoid dual illuminant situation. That could explain the difficulty to balance colors.
Ok, I tried this and it worked nicely (thanks!)
Then I went back to the regular git version of darktable, but it wonât start. I get:
[defaults] found a 64-bit system with 32822120 kb ram and 6 cores (0 atom based)
[defaults] setting very high quality defaults
[dt_ioppr_check_so_iop_order] missing iop_order for module negadoctor
[dt_ioppr_check_so_iop_order] missing iop_order for module doctor
And thatâs it. I did remove my .config/darktable directory, but to no avail.
I think you have to discard history for the images you edited with negadoctor
Youâre trying to show/edit images with a module that isnât in master (yet)
If you canât start DT, rename all xmp files you edited with negadr to something like .xmp.old
Thanks for the hint. Unfortunately, it did not help. Strange. (This annoys me itâs a linux system, I should be able to fix it. I grepped through the whole filesystem, and the string negad does not occur in the xmp files. I removed the complete .config/darktable and .cache/darktable directory. I checked-out a clean copy and installed it. So why is it complaining?) My original 3.0 from the arch repository still starts up though.
You should clean your build and install dirs before re-building clean copy
Aah, that was it! After I cleaned the /opt/darktable directory and reinstalled, it worked. Thank you
Negadoctor is now merged in darktable master and planned for release in 3.0.2 (in 2 to 3 months from now).
@anon41087856 For some images, after I set the color film base, when I click on the DR picker, the image gets very dark, even if I redraw the square to leave the unexposed film part outside. Screenshots and raw file below:
IMG_7461.cr2 (11.3 MB)
This file is licensed Creative Commons, By-Attribution, Share-Alike
EDIT: I played with the picker by selecting smaller regions and it seems to work, except if I include parts of the cactus
A darkening Dmax, which values goes through the roof, usually arises when you have dust on the film, so the measure is completely wrong. You need to select a clean bright part to measure the Dmax. Otherwise, simply setup the Dmax manuallly to make it look good.
Hum, I think youâve mentioned that on your video.
Even if we read tfm/see tfv, we still forget things. With the lack of the underlying knowledge, itâs as if we really donât connect things and end up relegating some important details to oblivion.
Dust and stratches removal is on my to-do list, but it wonât be easy.
That would be great, but the way negative inversion works now is already awesome.
I wonder if the dust&scratches future code could also be used for slides, since theyâre both subject to the same diseases (dust, scratches, but also fungus). Then maybe it would fit better inside imagedoctor, isnât it?
Could dust and scratches just be detection, then use a mode from retouch to fill them all in?
Time for someone to submit fungal samples in the mail.
My research documented in Scanned image scratch removal with âICEâ shows that you need some pretty advanced inpainting techniques to get reasonable results. Even the dedicated code from vuescan does not do a good job here, only patch based algorithms lead to acceptable results so far IIRC. Thatâs probably not to far from the healing/cloning in retouch module, but the difference is that a manual source patch is selected there.
A sample image is available at the end of the thread above, and Iâll update the original post soon to include some more samples. Only dust and scratches, as this is detected by an infrared scan, unfortunately, fungus is not and requires manual work to recover.
Wow, coming back to pixls.us after two weeks, I had 54 posts and one 20 minute video to catch up in this thread⌠Thanks a lot, @anon41087856, for your work on this and on darktable in general.
In case there are some people following this thread who have missed it so far, Iâd like to point out that you might want to consider supporting @anon41087856âs work: aurelienpierre's profile - Liberapay
Personally, Iâm sitting on 3900 scanned negatives and still have a few thousand to scan. Currently, Iâm using some scripts to batch process them, which is great to get a preview and to ensure that the scans are okay, but so far I have still been missing a way to manually editing single important pictures. I am really happy that this is changing and hope to find time to play around with it soon!
Well, arenât we all lucky youâve got such a useful sense of humor? Iâm pleased as punch with it and have been using it exclusively to process my negatives. I have a feeling itâs only gonna get better and am over the moon that I now have a reliable workflow for my film post processing. Nicely done!
Happy customers everywhere