33

It's a little easier than jrista's method. You still make your edits to a single file, but then on the lighttable there's a "History Stack" section which allows you to copy the history stack of an image (or any parts thereof). And then you can select multiple images and paste the history stack onto them. Update: I understand better jrista's mention of ...


17

How does one delete rejected photos from within Darktable Use 'Delete' button (Lightroom mode, right panel, 'Selected Image(s)' module): it "physically deletes" selected images from disk. It helps to display only previously rejected images by setting 'View' filter (Lightroom mode, top panel) to 'rejected only'. For faster use, you can associate a hotkey ...


17

Darktable handles JPEGs almost as RAWs. It just activates different processing modules by default, and e.g. the demosaicing module is of no effect for obvious reasons. See the Darktables module dependencies diagram. This diagramm is loosely processed from the bottom to the top by darktable. So, the arrows are followed in reverse direction. The user can ...


15

Actually there is a feature inside darktable for exactly this. Select all images you want to reset, then in the right panel, find the module [history stack] and click [discard]. That'll reset all the selected images. Further information in the user manual.


15

I actually wouldn't describe what you're seeing as a halo artifact. It seems to me to be posterization — there just aren't enough tones to smoothly represent the gradient of the sky. It just happens to be in a circular pattern because in this image the center is brighter and then diminishes evenly in all directions. In a different image, this same effect ...


13

Uncompressed RGB files (3 values per pixel) will be larger than your raws, as the raws contain a monochrome bitmap (1 value per pixel), and usually a downscaled, aggressively compressed preview that takes a fraction of the size, 400k for Canon 10MP cameras, and 1M for Nikon D5100 (I know these numbers because I used to read them out of the raw files and ...


13

This is essentially the same as Why does my Lightroom preview change after loading? . The RAW file contains a JPEG preview, which reflects the camera's settings and will generally be the same as an in-camera JPEG (although usually in low quality to save space). That's what Darktable is showing you initially. When you go to process the image, Darktable is ...


12

Have a look at snapshots, top left in the darkroom mode. For details, have a look at https://www.darktable.org/usermanual/en/snapshots.html


12

Within the white balance module you can select "spot" from the preset drop-down list to remove color cast based on a selected area. By default, the entire image except for a margin around the edges is selected; better results are usually obtained by selecting a part of the image that should be neutral gray or white (be careful about including any areas with ...


11

AfterShotPro 1.0.1 = ASP, Lightroom = LR 4.1 (sorry I don't have personal experience with DarkTable) Speed: ASP way faster. LR - sloooow (on Core i5 3550, 16GB RAM, Win7) Importing: ASP no need to import to do enough tasks with files. LR - mandatory Multi catalog searching: ASP only Non-distructive editing: both. Split Toning: LR only Local editing: The ...


11

Michael is right. More precisely: The RAW image contains two images: the embedded JPEG preview, which has your camera's processing applied including noise reduction, and the RAW data. When you open your image with an image viewer, you usually see the JPEG preview. In darktable, by default, you will see the JPEG preview in lighttable mode before you start ...


9

This is a non technical answer. I just want to describe my experiences using both. Darktable I use Darktable (version 1.2) on Ubuntu 12.10 and on OSX and the RAW handling is pretty slow, but it handles JPEG processing swiftly and with no processing time. It can get flustered and will often bomb out if you do massive imports of JPEGs. I shoot JPEG for ...


8

Automatic presets would do that, see the section "Module presets" in Darktable's user manual. Note that you need Darktable version > 1.4 for this to work sensibly with lens correction. In earlier versions the lens correction did not adapt correctly to the image parameters. Relevant section from the manual: A module has an expander bar . Clicking on the ...


8

For lensfun <= 0.2.8, you may download http://wilson.bronger.org/db/version_0.tar.bz2, and extract its contents over your old database, which usually resides in /usr/share/lensfun (clean this directory first). For lensfun > 0.3.0, a simple "lensfun-update-data" on the command line, possibly with a "sudo", is enough. Both methods install the current (...


8

RawTherapee, darktable, and other programs use lensfun for lens correction. If your lens appears to be absent from the database... Check the Lensfun coverage database to make sure it really hasn't been added yet. If it's already there, you may need to update your local copy (sudo lensfun-update-data). If your lens is not supported, you can read about how to ...


8

While darktable is an increasingly powerful piece of software, one of its rough edges is the fact that it doesn't try very hard to produce a good default "vanilla" rendering of the RAW files from the vast array of cameras that produce such files (understandable, being an open-source project with limited volunteer resources). By default, it applies a "base ...


7

Darktable has a great profile-based noise removal tool. You may give it a try if your sensor is already supported. If not, you can submit an own profile. See http://www.darktable.org/2012/12/profiling-sensor-and-photon-noise/ for all the glory details. It is especially smoothing with the option "wavelets".


7

Apologies in advance for my English - if someone wonders about my writing style, please keep in mind, my native language is German. I can tell a few things about ASP and Darktable on openSuSE and LR on Windows 7. ASP = Corel Aftershot 1.0.1 (Linux) LR = Lightroom 4 (Windows) DT = Darktable 1.2.1 (Linux, packaged for openSuSE) There was temporarily a ...


7

If you find that hitting the "auto" button in the GIMP levels dialog generally does the thing you're looking for, you can batch that as described here. Specifically, you would put this script: (define (batch-auto-levels pattern) (let* ((filelist (cadr (file-glob pattern 1)))) (while (not (null? filelist)) (let* ((filename (car filelist)) ...


6

The only way I know of to apply batch edits to multiple files in Darktable is to generate a history stack of the edits you wish to apply on one photo, export that history stack as a "Style", then apply that style on export to all the other photos. Not sure that this is what you are looking for...but I'm an infrequent user of Darktable, and that was the best ...


6

Decoding the ini file is possible, but translating them exactly into darkroom/shotwell edits is going to be problematic. The image manipulation algorithms are different. Your best bet is to export high quality JPEGs (or if you have a lot of disk space you can use TIFFs) and keep the RAWs as an archive. This is the approach I have taken as I moved from ...


6

I don't have an easy answer but I do have a workaround which might help. Import and selectively edit your JPEGs as before. Switch to the lighttable view (top right). In the collect images module on the left, select 'history' from the dropdown, then double-click on 'not altered'. Darktable should now be displaying only unaltered images in the main lighttable ...


6

Finally, I could figure out how to use the masks. Unlike other applications where masks is a separate module/feature, Darktable has built masks under every module. For example, if you want to change brightness/contrast of a certain part of the image: Go to brightness/contrast module on the left. At the bottom of the module, you would find Blend with Off on ...


6

Since you have a D5300, the answer is clear — Darktable just added support for that camera in version 1.4.2, at which point it was listed as "experimental". Darktable 1.6 was released a month ago (December 2014), so upgrading to that should solve your issue. If it doesn't, I'd add your feedback (and a sample file?) to this issue tracker request: Feature #...


6

Any time you view a "raw" image, you aren't really viewing the raw image. You are either viewing a preview image created by the camera and embedded in the raw file at the time the photo was captured or you are viewing a conversion of the raw image made for display on your monitor by the application at the time you open the image file. My intuition is that ...


6

Every image format (JPEG, PNG, TIFF, etc.) that I know of can only represent rectangular images. This means that unless you define your own image format, this simply cannot be done. The only thing you can do is to work with transparency. Even though the image itself will still be rectangular, if only a circular portion of it is opaque, it will look like a ...


6

Because darktable stores this info in its own database on initial import, you will have to force it to re-read the info from the altered files. The sure-fire way to do this is to remove the files within darktable and re-import them. In the case where you have image edits that you don't want to lose, you'll need to create .xmp sidecar files for the image ...


6

Darktable has two distinct operations: Remove and Delete/Trash. By default, the DEL key is bound to the former. That just removes the information about that file from the database, and doesn't affect the actual file. You can change this in the preferences under shortcuts: Double-click on the "delete from disk or send to trash" line and then press DEL. Now, ...


5

There aren't any built in that I'm aware of, but you can just define your own (in Darktable it would be a "style"). I have a base style I start with that adjusts the base curve, increases the saturation slightly, applies profiled denoising (a newer feature which is fantastic), lens correction, etc. A quick Googling for "Darktable styles" brought up the ...


5

I fixed this in the sources of Lensfun. It will be part of the next release. Until then, you can edit the file mil-panasonic.xml, probably in /usr/share/lensfun. Search for "12-32" in that file, and expand the lens model name to "Lumix G Vario 12-32mm F3.5-5.6 Asph. Mega OIS".


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