Re: [darktable-user] Highlight Details

As have been a lot of my replies today... I do not do things blindly, I work with lossy on purpose and have my reasons which have worked well for me for over 5 years now. but whilst everyone has now decided to point blame at the dng format I think we can stop this thread. As I hoped to learn more

Re: [darktable-user] Highlight Details

Two important things concerning the DNG*) format: 1) Lossless is an option 2) The DNG format also specifies a non-raw format called Linear DNG. See http://www.barrypearson.co.uk/articles/dng/linear.htm If any of the above is in actual play then your results are to be expected. *) https://helpx.ad

Re: [darktable-user] Highlight Details

Yes, I removed all EXIF data for privacy reasons! On Sun, 08 Apr 2018, 22:42 S. Witt wrote: > Just tried to play with the file. It seems to me that the dng does not > contain raw data at all. Modifying the demosaicing seems to have no > effect, in particular when choosing "passthrough". That is

Re: [darktable-user] Highlight Details

Just tried to play with the file. It seems to me that the dng does not contain raw data at all. Modifying the demosaicing seems to have no effect, in particular when choosing "passthrough". That is not what I would expect from real raw data. Even exif data seem to be removed. Am 09.04.2018 um 06:2

Re: [darktable-user] Highlight Details

True... ultimately everyone's help here has been great, definitely getting close to a work around. Speaking of lossy .dng files... what would your suggestions be for an alternative format that maintains a good amount of data without costing to much in filesize? Chris On 2018/04/08 08:04 PM, Patr

Re: [darktable-user] Highlight Details

I took a shot at this and did the following opened highlight reconstruction and set method to reconstruct in LCh and clipping threshold to 2.000 decreased exposure .5 ev opened color reconstruction and set threshold to 87.5 which gets rid of the magenta opened levels and moved the midtones right t

Re: [darktable-user] Highlight Details

* Chris [04-08-18 22:35]: > Agreed! The original cr2 would have more data. > > The fact remains though that LR is able to do a much better job with > this compressed DNG than DT can. > > Chris > > > On 2018/04/08 07:21 PM, Patrick Shanahan wrote: > > might be better if you would provide the "o

Re: [darktable-user] Highlight Details

Agreed! The original cr2 would have more data. The fact remains though that LR is able to do a much better job with this compressed DNG than DT can. Chris On 2018/04/08 07:21 PM, Patrick Shanahan wrote: > might be better if you would provide the "original" raw image instead of > the conversion

Re: [darktable-user] Highlight Details

* Chris [04-08-18 21:22]: > Fascinating! So dt is clipping somewhere somehow, or the dng format > 'pro' adobe somehow? :p > > So, just taking this further and assuming the detail I was looking for > was in the red channel.. I was able to desaturate the reds... but > obviously this would not work

Re: [darktable-user] Highlight Details

Yes, agreed, I was having the same ideas while playing with it. It looks like the DNG has different clipping values for each channel, and LR seems to automatically fill in the information better that DT's highlight reconstruction module in this case. It seems your best option is to desaturate the p

Re: [darktable-user] Highlight Details

If I slightly move the s&h white point slider the image looks ok but the reality is that the dt histogram initially reports that the sky is 'blown'. My experience using dt over several years is to always leave a little room at the high end of the histogram during the taking process. This has solv

Re: [darktable-user] Highlight Details

Fascinating! So dt is clipping somewhere somehow, or the dng format 'pro' adobe somehow? :p So, just taking this further and assuming the detail I was looking for was in the red channel.. I was able to desaturate the reds... but obviously this would not work if I had someone wearing red in the pho

Re: [darktable-user] Highlight Details

And, 'for the sake of science', I downloaded the .dng and opened it in Lr and dt. The histograms are quite different, even allowing for log vs linear on the y-axes. Lr shows a bunch of high intensity pixels on the far right hand side; these are missing in dt. This is before applying any slider

Re: [darktable-user] Highlight Details

Hi, Seems as though the pink colours appear in my image when I disable 'highlight reconstruction'. With this disabled the Green & Blue channels have a lot less data in the highlights than the red. Enable highlight recon, and it seems to scale all the RGB to a simple range. Odd, because I do not g

Re: [darktable-user] Highlight Details

Hi Guillermo, For the sake of science here is the .dng file I was using for both the DT & LR examples earlier. https://www.dropbox.com/s/cavd1o7z8r5ao0n/_MG_1496.dng?dl=0 Busy playing with it now paying more attention to the histogram. Chris On 2018/04/08 04:17 PM, Robert Bieber wrote: > > Don

Re: [darktable-user] Highlight Details

It may be truth (we need a developer to confirm), but in this case it seems to be working like I say. Try it: - open a picture - over-expose it with the Exposure module - try to recover using the shift white point slider on Shadows and highlights. Doing that, I lose all detail in the highlights. At

Re: [darktable-user] DT & Exif data (ex : Vacations)

PLEASE! Send only to the list. Co not send an extra copy to me. I don't want to get two copies. On 08/04/18 03:51 PM, Jean-Luc CECCOLI wrote: > > I don't know about your flow, but I set the DateTime on my camera so > that the > > value is 'correct'. perhaps your problem lies in your cam

Re: [darktable-user] Highlight Details

Don't quote me on this, but since the pixel values are all floats I'm pretty sure it's possible for one module to push them beyond the "maximum" values and another one to bring them back in with the detail still there, as long as everything ends up within the allowable bounds by the time it get

Re: [darktable-user] Highlight Details

Can you provide the original DNG so people can play with it? One think you should take into account is that modules in Darktable are applied in a certain order (bottom to top on darkroom). In particular, "Exposure" and "Base Curve" come before "Shadows and highlights". So, if Exposure pushes the i

Re: [darktable-user] Highlight Details

To quote the "Development" page on the website: Just use it! And afterwards let us know how you like it. Send your bug reports, feature requests, suggestions or just your personal opinion to our mailing list. -- August Schwerdfeger aug...@schwerdfeger.name On Sun, Apr 8, 2018 at 5:25 PM, Chris

Re: [darktable-user] Highlight Details

Hi, Couldn't agree with you more Peter. I am not trying to pick apart darktable... as I have actually just dumped adobe and am switching to darktable fully. So I am really just trying to learn the program and understand it better. Maybe there is a way to really get to the nitty gritty of the raw

Re: [darktable-user] Highlight Details

I've seen similar results to Chris. One of the (few) things that I've found Lightroom does better than darktable is highlight recovery. I have noticed that the darktable histogram doesn't seem to show content at the far right hand side that does show in the Lightroom histogram. Don't know if t

Re: [darktable-user] Highlight Details

Hi, So the shadows & highlights module also does not seem to full 'reveal' the detail in the clouds that I know exists... it simply darkens the existing pixels that we can already see. So not really 'recovering detail' as such. https://www.dropbox.com/s/u3lo4oy9dokdbwh/darkt_04.jpg?dl=0 and push

Re: [darktable-user] Highlight Details

Le dimanche 08 avril 2018 à 14:25 -0700, Chris a écrit : > Anyway, these are my adventures into highlights in DarkTable. You haven't activate the "shadows & highlight" module, so indeed nothing done for darktable :) -- Pascal Obry / Magny Les Hameaux (78) The best way to travel is by mean

Re: [darktable-user] Highlight Details

Here are my results DarkTable - UnEdited = https://www.dropbox.com/s/jd4ozjhqrw1ft50/darkt_01.jpg?dl=0 LightRoom - UnEdited = https://www.dropbox.com/s/5vbufsvyezodi7n/lr_01.jpg?dl=0 LightRoom - Highlight Slider = https://www.dropbox.com/s/suw9v3jnsszbsec/lr_02.jpg?dl=0 see the amount of detail i

Re: [darktable-user] Highlight Details

Hello, maybe this helps: https://www.darktable.org/2015/03/color-reconstruction/ On So, 08 Apr 2018 22:10:42 +0200 Chris wrote Hi All, I am a recent convert to Darktable, and seem to be battling to find a good way to recover detail in highlights. Ligh

[darktable-user] Highlight Details

Hi All, I am a recent convert to Darktable, and seem to be battling to find a good way to recover detail in highlights. Lightroom does such a good job of it with a single slider. I found this video: https://hooktube.com/watch?v=JF5CFQPgidk but he doesn't recover any detail, simply push colour int

Re: [darktable-user] DT & Exif data (ex : Vacations)

* Jean-Luc CECCOLI [04-08-18 15:53]: [...] > BTW : my web client seems to behave strangely at this time... so it would be a very good time to return to text email. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.orgopenSUSE Community Member

Re: [darktable-user] DT & Exif data (ex : Vacations)

> Message du 08/04/18 00:18 > De : "Anton Aylward" > A : darktable-user@lists.darktable.org > Copie à : > Objet : Re: [darktable-user] DT & Exif data (ex : Vacations) > > On 07/04/18 03:22 PM, Jean-Luc CECCOLI wrote: > > wonder why you feel offended by my first question - attempted you really

Re: [darktable-user] darktable support for eye-fi [solved, sort of]

Finally I managed to get it to work. While eyefi-config did help me to get a basic understanding how this operates, it's output isn't reliable. The reported upload key was incorrect, logfiles came out corrupted, and there is an important set of options not supported. My computer is a dual boot wi

Re: [darktable-user] darktable support for eye-fi

On Sun, 8 Apr 2018 19:31:53 +0200 "Jean-Luc Coulon (f5ibh)" wrote: >I've a Canon EOS 6D MkII. And (while it is WiFi itself [*]), it has >a menu entry for Eye-Fi. >Probably other recent Canon cameras support it as well. > >[*] Even if the 6D MkII has a WiFi function, I've not found any way >to con

Re: [darktable-user] darktable support for eye-fi

On Sun, 2018-04-08 at 18:34 +0200, ternaryd wrote: > I will have a look at it; but if I recall > correctly, this is connected to the same port > where I usually have my GPS plugged in. And > sometimes on top of that, a wired remote > release. Nikon should really have these built > in. Well, this i

Re: [darktable-user] darktable support for eye-fi

On Sun, 2018-04-08 at 19:31 +0200, Jean-Luc Coulon (f5ibh) wrote: Have you tried this — http://www.testcams.com/airnef/ ? > [*] Even if the 6D MkII has a WiFi function, I've not found any way > to connect it to any Linux software. It runs via Canon software on > the smartphone or under Windows. I

Re: [darktable-user] darktable support for eye-fi

2018-04-08 12:25 GMT+02:00 ternaryd : > On Sun, 08 Apr 2018 11:38:39 +0200 > Tobias Ellinghaus wrote: > > I have no experience with any of these cards > neither. The reason I opted for eyefi was that > Nikon allows to activate and deactivate this in > the menus. So I was worried, buying another >

Re: [darktable-user] darktable support for eye-fi

On Sun, 2018-04-08 at 18:34 +0200, ternaryd wrote: > But then, rather than looking for an eyefiserver, > it will always try to connect to > 199.192.198.30:80, which used to be api.eye.fi > but which is down right now (and I'm not > interested in it at all). I don't use cloud syncronization, just d

Re: [darktable-user] darktable support for eye-fi

On Sun, 08 Apr 2018 08:38:42 +0300 Timur Irikovich Davletshin wrote: Thank you for this very interesting reply. > IMO, Nikon networking (via WU-1a) has better > potential due to open protocol (PTP, Airnef > provides GUI for transfers). I will have a look at it; but if I recall correctly, this i

Re: [darktable-user] D850 files

* ternaryd [04-08-18 00:56]: > Hi, > > The D850 is so new, that many things, including darktable don't support > it fully. For that, I basically followed > > https://www.darktable.org/2012/10/whats-involved-with-adding-support-for-new-cameras/ > > and think, that it's working now. I've store a

Re: [darktable-user] darktable support for eye-fi

On Sun, 08 Apr 2018 11:38:39 +0200 Tobias Ellinghaus wrote: > While I have no experience with the eye-fi > cards I do have a Transcend WiFi card. I use > small script that checks the card for newly > added files every (few) seconds via its web > api and downloads them into a configurable > folder

Re: [darktable-user] DT & Exif data (ex : Vacations)

Am Samstag, 7. April 2018, 14:40:21 CEST schrieb Anton Aylward: [...] > Since I take the advice that Patrick echoes and don't alter[1] the values in > the RAW file [...] > [1] Other than adding a copyright appropriate field as the standard implied. That's like being just a little pregnant. Ei

Re: [darktable-user] darktable support for eye-fi

Am Sonntag, 8. April 2018, 07:07:05 CEST schrieb ternaryd: > I've been looking for a way to be able to > display an image I just shot. This is not what > is usually understood by wireless 'tethering'; I > want to continue to use my camera. It's just to > be able to see the result on a larger screen