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12 votes

How can I physically rotate a digital photo under Linux?

You can use cross-platform open source software jhead, with the options jhead -autorot *.jpg Which losslessly rotates the images based on the embedded rotation flag (and removes that flag, of ...
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10 votes

Local version of "White balance" in GIMP to clean up photo of document

I assume you have a gradient in overall brightness due to unevben lighting. If that's the case, what you could do is to duplicate the layer with the image and apply the best correction to each part of ...
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  • 2,119
8 votes

Linux software for stacking and RAW processing

Here is the process I use: cd ~/directory_with_raw_files ufraw-batch --out-type=tif --out-depth=8 --wb=camera --exposure=0.33 --black-point=auto *.NEF Of course, you will process CR2 files instead ...
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  • 712
6 votes
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Why does Darktable show D5300 RAW (.NEF) in pink in darkroom?

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 (...
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  • 140k
6 votes
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Is it possible to shape an image in a non-rectangular shape?

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 ...
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  • 985
6 votes
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Will Photoshop run on Linux?

In the past when attempting to install Photoshop on Linux, I've had little success. In reality there is probably no foolproof solution that will allow Photoshop to run without any problems, though ...
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  • 335
6 votes
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Simple Tool or script to sort in folders and by date RAW images in linux?

Exiftool reads many raw formats. You can use a command similar to this one to rename your photo files : exiftool '-filename<CreateDate' -d %y%m%d_%H%M%S%%-c.%%le -r -ext cr2 /path/to/pictures ...
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  • 176
6 votes

Entry-level Linux compatible DSLR

Most every DSLR/SLT/DSLM - certainly major brands like Canon, Nikon, Sony, Pentax - saves to SD or CF cards in a standard format, and additionally supports USB mass storage protocol, you DO NOT NEED ...
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5 votes

What properties of an image could be used to programmatically discard it as "bad"?

A reasonable answer to this would be "it depends" (another perspective is to "battle a little against the idea of objective metrics") I'd recommend consulting this chart to determine how long you ...
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  • 181
5 votes

How can I physically rotate a digital photo under Linux?

The command line program jpegtran can losslessly rotate JPEGs on Linux. From the command line: jpegtran -rotate 90 MyJpeg.jpg > MyJpegRotated.jpg If you don't have jpegtran program installed, ...
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5 votes

How can I update the firmware on my Godox gear on a Mac (OSX) or Linux computer?

OSX-only options G3 / F3 Godox/Flashpoint has released an OSX version of the G3/F3 updater. However, at this time, it only supports updates for the following devices: V1 for Pentax TT350-P and Xpro-P ...
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  • 49k
4 votes

Why does Colorhug calibration with laptop and Linux Mint 17.1 come out very red?

There are actually three possibilities here. First and most likely, I think, make sure you have the latest colorhug firmware. Run colorhug-flash to check. I have one of the very first colorhugs, and ...
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  • 140k
4 votes

How do I use a card formatted as exfat by my Canon 6D in Linux?

Just solved the issue by chance - I used exfatlabel to name my card and voilá it was auto-detected and works fine under Linux and in my 6d:)
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  • 191
4 votes

Problem with processing .CR2 format in Linux

That is the result of the raw processing program not having the correct profile for the said camera. Getting an updated version should resolve your problem. The list of cameras supported by ...
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  • 51
4 votes

Problem with processing .CR2 format in Linux

RawTherapee supports Canon PowerShot G16 starting RawTherapee version 4.2.
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  • 2,001
4 votes
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WiFi programmable camera

I'll tell you right away that there is no chance for me to answer without being very technical. Since you're looking for an open source solution it cuts away all of the commonly used programs and ...
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  • 8,138
4 votes

What is the best linux/BSD distro for photography?

There isn't one, overall. I don't think anything focuses on this specifically. Any distro can work just fine, and I suggest picking one that you like in general and the photography apps will follow. ...
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  • 140k
4 votes
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Convert 10bit images under Linux

LibRaw supports this format (current development trunk). So, you may use any LibRaw-based software (digiKam or so), but you'll need to update/recompile LibRaw and software that using it.
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4 votes
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I accidentally shot in 12 bit instead of 14 bit, and my pictures are green and underexposed. How can I compensate/convert?

As written in the comments (see http://rawtherapee.com/forum/viewtopic.php?f=3&t=5406) the issue is not intrinsic to 12 bits, but it is caused by a wrong interpretation of the RAW data by dcraw (...
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  • 1,110
4 votes

Any way to use Nik Software under Linux?

I published a small open-source application for using Nik Collection plugins on Ubuntu. The app compiles both under Linux and Windows, but it is recommended to compile Windows version and use under ...
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4 votes
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From Linux shell, how to batch-remove dust from images using scan of dust?

Dust removal using a dust mask can be done with G'MIC with the "Inpaint [Multi-Scale]" filter. The easiest way to use G'MIC is as a plugin for GIMP, Krita, or Paint.NET. However, it is available as a ...
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4 votes
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How to get Shotwell to see Rawtherapee edits to RAW images?

If I view an image in Shotwell, and choose "Open in RAW Editor", make an edit, then go back to Shotwell, how do I get Shotwell to then show the edited image? You probably can't. The RAW editors like ...
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  • 6,032
4 votes

Most compatible RAW format for Linux users?

It takes some time for developers to support raw files from new cameras, even though they may share the same file extension as raw files from previous cameras. Many Linux raw processing programs use ...
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4 votes
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Darktable 3.4 module order does not match that of pixelpipe

The order the modules appear in the history stack depends on the editing steps you make in the UI. The history is a versioning of your edits, a simple revision system. This cannot be compared and isn'...
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  • 270
3 votes
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DAM, Digital asset management for Linux

After a long wandering for several years in searching of the perfect DAM solution, I didn't find it. However the program which comes closer (IMHO of course) and fits best for our company's needs is ...
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  • 4,395
3 votes

DAM, Digital asset management for Linux

digiKam is something I came across as well.
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  • 522
3 votes

Is there a Fuji X10 raw converter for Linux?

The current unstable version of darktable includes full support for this camera and many others (including most or all modern Fujis). It uses rawspeed, a more modern raw parsing/decoding library, to ...
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3 votes

How do I create a timelapse video from a collection of photographs in Linux?

Blender is a good solution if you're dealing with motion timelapse (hyperlapse) or unsteady footage. It has motion tracking capabilities so you can choose a fixed point to track throughout the ...
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3 votes
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How do I use my screen calibration profile in Lightroom under wine?

I figured it out! I noticed there were some extra files in .wine/drive_c/windows/system32/spool/drivers/color/, some of which I guessed were from my experimenting, but I wasn't sure, so on a whim I ...
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3 votes

Hardware calibration for Eizo Monitor on Linux / Ubuntu without ColorNavigator?

According to Eizo, this is not possible. I've had a lengthy conversation with a very friendly Eizo technican in October 2016, concerning the monitor CS2420. I would expect this to hold true for all ...
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