/r/DarkTable

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An Unofficial place for questions, discussions, tutorials, workflows and possible bug discussions about darktable.

darktable is an open source photography workflow application and raw developer. A virtual lighttable and darkroom for photographers.

An Unofficial place for questions, discussions, tutorials, workflows and possible bug discussions about darktable.

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  • 🚧 darktable documentation

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  • πŸ“š User Manuals (4.0)

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    Deprecated Modules

    All modules

    Name Replaced By
    basic adjustments quick access panel
    channel mixer color calibration
    defringe chromatic aberrations
    fill light tone equalizer
    global tonemap filmic rgb
    invert negadoctor
    spot removal retouch(clone mode)
    tone mapping tone equalizer
    vibrance color balance rgb
    zone system tone equalizer

    Help

    New to darktable and not sure where to start? These links may be of help.

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    :: For in-depth information, please check the screencasts wiki.

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    /r/DarkTable

    9,588 Subscribers

    2

    Images way over saturated after export

    I have been using darktable for quite a long time now but recently I have this issue where images come out way over saturated after exporting. I shoot images in jpeg and the initial preview in dt looks exactly like the image out of the camera. However after exporting it shifts to an over saturated mess.

    preview and out of camera:

    https://preview.redd.it/yq0h67p2eyyd1.png?width=2839&format=png&auto=webp&s=f80f04087c0b497219bf12fa67c162dce5306432

    exported image and preview:

    https://preview.redd.it/w4hhz1u5eyyd1.png?width=2839&format=png&auto=webp&s=03e79953b6576cf15acd4a6b30116f7a8e15b848

    this is without doing any changes to the picture just import -> export

    It is a Nikon Camera with AdobeRGB set a colorspace for the jpgs. Changing the output profile sRGB/AdobeRGB does not seem to make any difference for the issue as well as changing the intent

    I have no idea where to go from here

    edit: converting from adobeRGB to sRGB in GIMP has exactly the same effect so I guess I know what the problem is now. Too bad I already shot all my holiday pictures on the magic non working adobeRGB profile. Lessons learned

    6 Comments
    2024/11/04
    21:39 UTC

    1

    RAF files aren't being opened.

    Anyone able to help troubleshoot? Trying to open raw files from my Fujifilm xt30 ii but darktable is saying this camera isn't supported and the files cannot be opened.

    BUT, the weird thing is, I've opened them before and edited them fine, like, in the past week. Using the same version of DT (4.8.1)

    2 Comments
    2024/11/03
    14:06 UTC

    2

    Darktable don't use dedicated GPU on windows

    Just installed on pc and noticed that dt only use igpu (both amd) and windows graphics settings don't change anything

    7 Comments
    2024/11/03
    13:43 UTC

    1

    How can i move files from laptop to USB, without losing ratings and collections?

    My RAW files are exceeding my laptop SSD capacity, so I want to move them to an external SSD. I know I can just move all my directories across (using the OS file manager) and re-import them, but then AFAIK I lose all the rating and collection information I've input over years. I cannot find in the DT documentation how to do this. Please help

    DT 4.8.1

    2 Comments
    2024/11/03
    10:13 UTC

    3

    avoid opening darkroom when "import/add to library..." a single photo

    In the lighttable view there's a "import" tab on the left with a "add to library..." button. When I add a folder with multiple photos, after importing Darktable shows me the photos imported, still in the lighttable view. Fine.

    But when I add a folder with a single photo (or select a single photo from a folder), then Darktable opens the darkroom instead. That's an inconvenience when I'm in the processing of adding lots of folders, some of them with a single photo.

    It would be nice to have an option to disable the automatic opening of the darkroom when adding a single photo.

    EDIT: since the annoying bot asked: Darktable version 4.8.1, running on Void Linux, and seems like OpenCL is not available.

    2 Comments
    2024/11/02
    18:36 UTC

    4

    Darktable deleted all my masks

    I edited around 7 photos in the last 2 days, kind of new to darktable, I tried the snapshot feature to see the before and after and only now realised all the pictures i tried it on are missing the masks, what can i do about it? (Other then edit all over again)

    6 Comments
    2024/11/02
    17:25 UTC

    3

    Darktable CONSTANTLY freezing

    Ok so for the last few days darktable has been freezing my Entire PC for sometimes a minute at a time. My gpu usage will spike to 100% during the entire time.

    this will happen every few steps even when its something that shouldnt do anything like changing overlay on the crop tool. My pc will freeze up completely for up to a minute.

    Now the weird thing is that the full resolution Export with high Quality Resampling Enabled will only take up to 20sec and my pc will be completely useable the entire time.

    Both my Memory and Vram are not even close to full the entire time so that is not the problem

    Specs:

    Ryzen 5 3600
    32gb 3200mhz RAM
    rx 6800 (16gb)

    Images are 18mp RAW in Adobe RGB

    7 Comments
    2024/11/02
    13:59 UTC

    2

    DT crash when importing from Nikon D4S

    Hey folks!

    Somehow I have figured out how to install DT on my old 2018 i7 Mac Mini running Ubuntu 24.04.1 LTS. It runs brilliantly so far. It’s been a long road but I’m finally feeling more self-sufficient without Adobe in the picture. I’m a (lifelong) hobbyist coming from over a decade in Lightroom and It’s amazing to break free. I’m excited for it and thankful DT exists.

    One inconvenience - I have an β€œold” Nikon D4S with an XQD and a CF card in it. For whatever reason, Darktable crashes when I try and import photos directly from the camera. My workflow is like this:

    Plug in usb cable to camera -> plug in usb cable to Mac Mini -> turn on camera -> unmount the camera from the OS -> mount the camera in Darktable -> click the β€œcopy and import from camera” button -> DT crashes

    Note: I only have NEF raw files on the cards (mirrored over the two slots).

    Troubleshooting #1: To try and troubleshoot a little, I tried the same thing with a Canon 1dx Mark II with a single CFast card in it. The CR2 files import with no problems.

    Troubleshooting #2: outside of DT, I imported all my images to a folder on my desktop. Then I tried to import those into DT. No problems there.

    So,

    1. being new to Linux and DT, is there some sort of log file I can find for further troubleshooting?
    2. anyone else out there have a D4S and successfully pulled images directly from the camera?
    3. any other ideas on how to figure this one out?

    Unfortunately, I don’t have any card readers, so my goal was always to go straight from camera to computer. I’m not worried about speed at all. Im also paranoid of bending pins in these old cameras. I’m very lucky to have them as is and I don’t want to mess them up.

    Fortunately, there is the workaround of moving images to the computer first, but the optimizer in me wants to fix the issue!

    Thanks in advance

    7 Comments
    2024/10/31
    05:00 UTC

    7

    Darktable different colours before and after export. (Left not exported, right exported)

    14 Comments
    2024/10/29
    23:24 UTC

    20

    Darktable 4.8

    Btw, I'm sooooo happy about the speed of the new version! It is unbelivable fast in comparison to the previous!

    0 Comments
    2024/10/29
    22:37 UTC

    6

    Brush tool questions (4.8.1)

    Coming from lightroom, and besides AI masking (which I am not expecting DarkTable to ever be interested in implementing), the one thing I find DarkTable missing is a user-friendly brush tool. The Brush in lightroom is just so intuitive, whereas in DarkTable the feathering is hard to visualize, and shapes must be combined if you want to cancel the effects of a mistake in your brush stroke (or you have to delete and redo it). Is there anything that could help me get more out of the brush tool? Why a better brush hasn't been a focus of development and improvement? I find it surprising given how amazing and years ahead of lightroom the masking features are in DarkTable.

    9 Comments
    2024/10/28
    19:28 UTC

    1

    B&W color tinge

    Hi all. How would you give a black and white edit a cold/blue tinge? Thanks

    2 Comments
    2024/10/28
    19:00 UTC

    11

    What is a "correct" white balance?

    Here are two hypothetical scenarios: 1. I take photos under some sort of artificial light that gives some sort of colour cast. I take a photo of a grey card and use that to calibrate a neutral white balance, removing the colour cast from all my photos. 2. I take some photos at sunset. Everything has an orange colour cast. I want that orange colour cast, so using the same grey card to achieve a neutral white balance is undesirable. I set my white balance to something that keeps the orange cast.

    In these two different scenarios I'm doing two different things: in one I'm actively removing a colour cast, in the other I'm deliberately keeping it. In terms of my photos both of those process are correct, in that I'm getting the colours I want in my images. That's a purely subjective choice. Objectively, in terms of the technicalities of the workings of DarkTable, is there a universal "correct" methodology to set the white balance, or it is always, ultimately, subjective?

    15 Comments
    2024/10/27
    11:14 UTC

    2

    arri "look"

    hi, I'm new in the group. I wanted to know if it was possible to give a "arri look" on my raw with darktable. I know it's more a videos/movies LUT usually but I really like it. I would know how it can render in photo. sorry for my English I'm french

    9 Comments
    2024/10/26
    21:43 UTC

    2

    A cmd window opens up and disappears when I launch Darktable.

    I'm new to it, is this normal? It happens every time

    4 Comments
    2024/10/25
    16:35 UTC

    13

    Capture One to DarkTable?

    I’m wondering if anyone in the community has migrated from CaptureOne to DT? If so, any insights to share before I take the plunge? Thanks.

    32 Comments
    2024/10/24
    12:10 UTC

    2

    Darktable is slow on my computer and takes a minute to launch

    Hi, I've made a post about this not too long ago, but I didn't receive any real solutions. I also opened a bug report on the Github for Darktable, but that also yielding no results. I'm hoping that someone may see this post and be able to help!

    Here is the link to my previous post: https://www.reddit.com/r/DarkTable/comments/1fpdutv/why_does_darktable_take_so_long_to_open_and_why/

    Here is the link to my Github report: https://github.com/darktable-org/darktable/issues/17554

    I originally got Darktabe 4.8.1, however it would take a whole minute to launch and each parameter change would take a second or two to actually register.

    Upon advice from my previous post here, I was given suggestions to try older Darktable versions and a nightly build. Darktable 4.2.1 and 4.0.0 both failed to launch at all. Nightly build 4.9.0 still launches slowly, however its performance is much better than that of 4.8.1 (although still sluggish and occasionally crashes for no reason).

    Darktable works fine on my laptop and a family members computer (who's specs are extremely similar to mine). I've even tried Darktable in a Windows VM on my computer and its performance is similar to that of it running on my computer normally (In VMs however, it doesn't take a minute to launch).

    I'm at a complete loss here. I have no idea what could be causing this slow launch and sluggish performance. I understand that it'll be slower on Windows because it's a port from Linux, but still is just ridiculous.

    - Windows 10 Home 22H2

    - Ryzen 5 3600

    - 16gb ram

    - GTX 1050ti 4gb (latest drivers)

    3 Comments
    2024/10/23
    22:38 UTC

    3

    Masking and exposure

    I am absolute beginner to darktable. If I use mask to adjust exposure on my subject, do I then lose ability to adjust global exposure too? What if I want to use various exposures to different regions? From my 2days of working on DT, it seems like when you apply mask to a module, I cannot use that module for whole image or for another area that I want to mask.

    10 Comments
    2024/10/20
    16:08 UTC

    2

    Help removing the white mask over this picture

    I'm not sure how I completely messed this picture, but it has this white mask all over it. Moreover, I only have a JPEG, no raw file.

    I tried the Haze removal module, and it work great, but it adds some fringes, especially over the arm of the woman. Is there a solution to get rid of the haze without adding those fringes?

    The original JPEG

    What I tried to do

    3 Comments
    2024/10/20
    15:01 UTC

    3

    Working with MIDI potentiometer

    Hi all! I'm looking for an info about working with midi controller. Is there a way to configure Darktable so that by clicking on a control with the mouse, I can then use a knob on a MIDI keyboard to control the slider? But on every slider without have to assign a specific control to a specific knob.

    Thank you in advance.

    7 Comments
    2024/10/20
    09:50 UTC

    6

    What's the best way to tame small groups of overexposed pixels?

    I often have little patches of overexposed pixels in my edited images which I want to correct. Is there a recommended best practice to sort them out? Reducing exposure makes the whole image too dark. The filmic RGB white relative exposure control or the tone equalizer module makes my other highlights too dark. The highlight reconstruction module doesn't seem to do anything. Is a mask selecting the brightest pixels the only way to go?

    I'm not a Lightroom user, and never have been, but from YouTube videos I've seen it looks like people just adjust one slider (whites?) to bring these pixels back under control. Does Darktable have anything similar?

    3 Comments
    2024/10/18
    19:20 UTC

    11

    White Balance

    I'm not quite sure I understand the purpose of having a white balance module on top of a color calibration module, both seem to interfere with the other.

    What is the proper way to adjust white balance in darktable?

    18 Comments
    2024/10/18
    12:38 UTC

    4

    Can the DT database be on a shared drive

    I have two PCs with DT. The images are on a shared drive, but not the database. Is it possible (safe) to have a single database on a shared drive that two instances share?

    8 Comments
    2024/10/17
    21:22 UTC

    3

    White Balance Bug

    This probably won't get any traction, but encountering something I don't understand drives me mad and I'm just trying to move past it. I think the best thing to do is just to take the advice of others I've read and not ever touch the white balance module, but it does seem buggy to me.

    There was a bug post on the git that adjusting the white balance parameters at all gave the error that white balance was applied twice. The poster felt this was a bug, but it was pointed out that since it is applied automatically to the photo, making an adjustment then adds a new instance of the white balance module to the stack. Therefore yes it is applied twice and there is no bug (or so the person who closed the bug report claims.)

    But here's a kicker, clicking the compress history stack button removes the second instance of white balance and yet it still claims it has been applied twice. If you click a few more times the error goes away.... buggy.... then if you reset the whole history stack which I feel should unequivocally and unilaterally return the image to it's original state it jumps the white balance in the opposite direction from the correction.

    Test it yourself: open image, slide white balance tint to much warmer (higher k value), compress history stack repeatedly until duplicate white balance error goes away, then reset history stack and the image goes far cooler than it was originally with seemingly no way to get back to default. I even tried deleting the xmp files hoping they would reinitialize... Does adjusting the white balance in this way somehow adjust the nef file? Or is other data stored somewhere else? Idk its all a fucking mess and I want to rip my hair out. I guess I will just make the decision to never ever ever touch the white balance module.

    5 Comments
    2024/10/17
    18:39 UTC

    4

    OpenCL Init error for Darktable AMDGPU Tutorial

    I didn't found any direct solution to this issue anywhere so I post my solution here.

    For Arch linux:

    Install

    -opencl-amd (from AUR)

    -opencl-clover-mesa

    For Ubuntu based distros

    -ROCr runtime

    -ROCm runtime

    -HIP runtime

    Enable OpenCL from "processing" in DarkTable settings.

    I hope I have helped.

    2 Comments
    2024/10/16
    16:48 UTC

    1

    Is this the right forum for my question?

    I planned a custom-built desktop computer intend to use Darktable 4.8 on Linux Ubuntu 24.04.
    The idea is to have Darktable process those 36MP raw files fast and fluid.

    I would like to consult others' experience and solicit tips and suggestions before going ahead and buying the components and setups.

    Is this here the right forum to post the planned build (hardware etc) for comments & reviews?
    I am asking because I am new to Reddit and had a question post deleted before (can't remember where).

    11 Comments
    2024/10/16
    01:12 UTC

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