Re: [darktable-user] Darktable seems to display pictures darker than they are

The camera sensor capture quite a flat recording of the scene and this is later processed through a base curve to make it look closers to what we saw with our eyes. This happens with any typical raw -> img conversion. They way our eyes "see" and the way a sensor works are different so some mapping

Re: [darktable-user] What about adding more IPTC fields to the metadata editor?

This is very nice in theory and in some situations it works too. But in many others it's just a mess. Let's suppose I have 2000+ pictures, I rate them, tag and process them with DT. Now I'm done and I export 300 jpeg files. Now I start digikam or something else, import the exported files and add

Re: [darktable-user] A way to redeem myself

Regarding the shot, you could have used a larger aperture (as large as possible for that focal length, the smallest value you can get). You could also try a little slower shutter speed, up to 1/30, standing VERY still or using a tripod or a table as support, taking a few shots, like a dozen, to be

Re: [darktable-user] How can I find all monochrome images?

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Re: [darktable-user] How can I find all monochrome images?

I do not know if there is a better trick but if you do not mind playing with shell scripts you can use find + xmlstarlet to find xmp files with the monochrome module enabled and add the corresponding tag to it. Lorenzo Il giorno gio 14 mar 2019 alle ore 22:32 Mark ha scritto: > Is there a

Re: [darktable-user] Colorizing monochrome photos?

I think the best way today is to use neural networks: http://richzhang.github.io/colorization/ https://lukemelas.github.io/image-colorization.html https://www.learnopencv.com/convolutional-neural-network-based-image-colorization-using-opencv/ If you want a ready to use option try this:

Re: [darktable-user] Re: [darktable-dev] Re: HDR issue in darktable 2.6.0

Sometimes I get strange blue "shades". Going into "input color profile" and setting gamut clipping to sRGB fixes it. Il giorno gio 14 feb 2019 alle ore 12:29 Dusenberg ha scritto: > I have just been puzzling over the 'pink highlight' problem on several > raws I recently shot (not HDR), all of

Re: [darktable-user] How to compare photos side-by-side

In the lighttable, if you select multiple pictures (ctrl or shift + click) and place the mouse pointer over one of them you can use Z and the arrows or the mouse wheel to switch between them. In the shortcuts preferences you can assign a key to the "sticky preview" to toggle the full screen

Re: [darktable-user] White balance Spot Selection & History stack copying

I'd like this too for lens correction: the lens may be always the same but at different focal lengths. Now I have to enable it one by one for each photo. 2018-08-01 13:31 GMT+02:00 : > Jochen Keil (2018-Aug-01, excerpt): > > Is there a way to tell darktable that it should analyze each image on

Re: [darktable-user] How to (or can I) narrow down the lighttable history search rule by a given used module?

I doubt this is an existing functionality. If you are comfortable with shell programming you could try this: - Go into core options and enable: "look for updated xmp files on startup" https://www.darktable.org/usermanual/en/core_options.html This will make the next startup very slow and may

Re: [darktable-user] darktable treatment of jpeg photos

Just work on the jpeg. As you say, this file is never modified so there is no quality loss depending on how many times you "edit" it, in the same session or multiple sessions. Converting a jpeg to a lossless format before editing will give you zero advantages. When you export the file to a lossy

Re: [darktable-user] Vacations

First I would install a distro targeted at low end machines. Something that does not use 90% of the memory just to di fancy animations. Maybe you can already find a lightweight image viewer there. Check the memory usage and disable *everything* you do not need (printer, desktop background, fancy

Re: [darktable-user] Making numberplates of cars unrecognizable

You could try a large radius lowpass with a mask on the plate. 2017-12-28 11:09 GMT+01:00 Dietmar Künkler : > Hi, > > Can you give me a hint? > How can I make numberplates of cars unrecognizable. > Which modules(s) do I have to use for that? > > Thanks in advance.

Re: [darktable-user] Contrast by details

I use it with parametric masks, geometrical and/or by luminance. Or equalizer may be an option. 2017-12-05 21:01 GMT+01:00 : > DT 2.2.5 > > Is there a way of setting the contrast levels according to the > details? > > I don't want to add in contrast in skies or in

Re: [darktable-user] lensfun database update, lens ok camera ko

These may help you to see what is going on: strace -e trace=open,getdents darktable 2>&1 | grep -C 10 xml I can see this in the log if I add an aaa.xml in the .local/share/lensfun folder open("/home/aaa/.local/share/lensfun", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 25 getdents(25, /* 5

Re: [darktable-user] Sharpening after resize

2017-11-14 8:03 GMT+01:00 <junkyardspar...@yepmail.net>: > On Mon, Nov 13, 2017, at 22:29, Lorenzo Bolzani wrote: > > I'm quite sure that all processing is applied before downscale (this has > > been discussed before). And sharpening is mostly lost after downscale. > >

Re: [darktable-user] Sharpening after resize

I'm quite sure that all processing is applied before downscale (this has been discussed before). And sharpening is mostly lost after downscale. What I do is to reopen all the small exported files with DT, apply sharpening on the first one (with different parameters than before as the file is

Re: [darktable-user] A Droolable screen

I use TAB when I need more space (or Z for a quick check). I think it's easier than turning the head back and forth between two screens anyway. 2017-11-02 18:34 GMT+01:00 Patrick Shanahan : > * J. Paul Bissonnette [11-02-17 13:26]: > > Not sure it can be

Re: [darktable-user] Work flow

And if you go on the "power symbol" tab in the right pane (the first tab from the left) and press again on the "power symbol" the list will switch from an "active modules" list to "all modules" list. So you can see the ordering of all modules, even the ones that you are not currently using.

Re: [darktable-user] zoom

Same thing here, I think it is a bug. When you go from 191% (or something like that) to 200% using the mouse wheel the image suddenly jumps and is no longer centered under the mouse pointer. Lorenzo 2017-10-02 17:03 GMT+02:00 Jean-Luc Coulon (f5ibh) < jean.luc.cou...@gmail.com>: > Hi, > > On

Re: [darktable-user] OpenCL -- did I solve my problem?

nvidia-smi may give some hint on the situation, for example running it as: watch -n 1 nvidia-smi 2017-09-22 11:27 GMT+02:00 thokster : > Am 22.09.2017 um 09:11 schrieb Remco Viëtor: > >> On vendredi 22 septembre 2017 07:35:32 CEST Michael Below wrote: >> >>> Just an idea:

Re: [darktable-user] Wishlist: Upscaling via Machine Learning

These are the most impressive results I'm aware of: https://github.com/david-gpu/srez https://github.com/alexjc/neural-enhance https://arxiv.org/pdf/1609.04802.pdf but both gives the best results with specialized training (faces for example). The one Michael proposed seems a more generic one. No

Re: [darktable-user] Darktable on HiDPI screens

With a 3200 and a 2560 display (long side) I use: screen_dpi_overwrite=76 panel_width=230 (also in the GUI Options) But I have hi-dpi enabled with Mint Mate so this may not apply to you. Bye Lorenzo 2017-07-04 14:21 GMT+02:00 Аl Воgnеr : > I found >

Re: [darktable-user] sharpening vs highpass

Al alternative is to use darktable-cli in this way: 1. export a downscaled version of the image 2. open it with darktable and sharpen it to your liking (depending on the downscaled size) 3. close darktable and copy the xmp file as my-sharpen.xmp in a folder of choice 4. for your next downscaled

Re: [darktable-user] Can't remove high frequency chroma noise with equalizer

2017-04-13 21:55 GMT+02:00 Guillermo Rozas : > I get very good results for "medium noise" (ISO 800 in a 5D mk II) using > two copies of the profiled denoise module: > I also get good results in this mode. For high ISO shots I usually start with a little raw denoise

Re: [darktable-user] Re: Export for web - downscale

ommend. > > Thx > > 2017-03-28 0:26 GMT+02:00 <darkta...@911networks.com>: > >> On Mon, 27 Mar 2017 23:58:19 +0200 >> Lorenzo Bolzani <l.bolz...@gmail.com> wrote: >> >> >I just did a quick test: one export with no style applied and another >> &g

Re: [darktable-user] Re: Export for web - downscale

I just did a quick test: one export with no style applied and another export with a custom style containing sharpening set to max settings. The two exported files are clearly different. So I think the best option for downscale is to create a few styles (like 640-sharpen, 1280-sharpen,

Re: [darktable-user] Canon g7x mk ii - dark corners and incorrect focal length

2017-03-27 11:19 GMT+02:00 Alex Delaforce <123.adelafo...@gmail.com>: > The image problem is more than distortion. The image circle doesn't cover > the sensor leaving black corners. If I use jpeg instead of RAW I think the > processor stretches the image to cover the rectangle corners. Which I

Re: [darktable-user] What the difference

Raw warnings are relative to the RAW file before any extra DT processing. These cannot change. Instead "classic" warnings are relative to the image with the current processing applied, in other words are relative to the image you are going to export (the "jpeg"). If you have "image" clippings

Re: [darktable-user] Canon 80D (CR2), color problem on Debian ?

2017-03-04 8:00 GMT+01:00 : > Hello, > > Thank you for your answers. > > On 2017-03-03 15:58, Chris Siebenmann wrote: > >> I recently purchased a Canon EOS 80D, I am a Debian (8.7) user. All this >>> is quite new to me so it might be a newbie question rather than a >>>

Re: [darktable-user] white balance

o do the job. > > About the reflectivity of the neutral grey : it is an other matter. Such > grey card can be used to adjust the exposure. But as there are strong > controversies about what should be the neutrality of a neutral grey, this > subject is prone to leave to various trolls. >

Re: [darktable-user] How to fix overblown white?

This video contains a few different tricks for various situations (color reconstruction, tone curves, colorize, etc.): http://weeklyedit.com/blownout-highlights/ 2017-02-04 9:57 GMT+01:00 KOVÁCS István : > Have you tried the base curve with exposure fusion? It works

Re: [darktable-user] Multiple jpgs from one raw file

In lighttable select "duplicate" in the top right to have multiple "copies". Also use the history tool, again on the right side, to copy/paste edits from one version to another. Lorenzo Il lun 30 gen 2017, 12:20 Michael Staats ha scritto: Hi Sometimes I liked to have two

Re: [darktable-user] One color + b ? How to ?

I would try with a "drawn & Parametric mask" blend mode on the Monochrome module. On the parametric mask use hue or a/b sliders to isolate the main color (hint: input slider). You may also set lightness and chroma for fine tuning, but probably there is no need. Use the mask preview. It's easier

Re: [darktable-user] Pixel Shift Support

Hi, Olympus E-M5 mk2, Pen-F, E-M1 mk2 do this with 8 shots, 1/2 pixel shifted: http://andreas-wonisch.com/wp-content/uploads/2015/02/scheme_high_resolution_mode.jpg Olympus creates a 64MP raw file. I suppose it should be similar to their standard RAWs but you need a custom plugin to use it in