Re: [darktable-user] Highlight Details

Peter, Thank you and Chris for providing the images and the question. I learned a lot about highlight reconstruction and color reconstruction just playing with these two images. Bill On Wed, Apr 11, 2018 at 12:23 PM, Peter Cripps wrote: > Thanks Bill, thats much better

Re: [darktable-user] Highlight Details

Thanks Bill, thats much better than I've been able to achieve with dt. I clearly need to spend time learning how to use the highlight reconstruction module! Before posting the inevitable Lightroom comparison, let me say that I really don't like using that software. I have a long list of

Re: [darktable-user] Highlight Details

I took another shot at the image with better results this time https://www.dropbox.com/s/4fihvmxi0ct9jt6/orf.jpg?dl=0 Sidecar is attached. Bill On Mon, Apr 9, 2018 at 4:26 PM, Peter Cripps wrote: > > > On 04/09/2018 10:28 AM, Timur Irikovich Davletshin wrote: > >> >>

Re: [darktable-user] Highlight Details

On lundi 9 avril 2018 22:26:01 CEST Peter Cripps wrote: > On 04/09/2018 10:28 AM, Timur Irikovich Davletshin wrote: > > Well, did they look the same before reducing exposure? I wonder if > > basecurve is the same in both cases (two options are available in DT). > > Looks like LR does some sort of

Re: [darktable-user] Highlight Details

On 04/09/2018 10:28 AM, Timur Irikovich Davletshin wrote: Well, did they look the same before reducing exposure? I wonder if basecurve is the same in both cases (two options are available in DT). Looks like LR does some sort of highlight reconstruction by default, if you enable LCh

Re: [darktable-user] Highlight Details

On 09/04/18 20:35, Remco Viëtor wrote: If it were that simple, we wouldn't have the discussions about importing editing instructions between programs. But in practice, each program has its own tweaks, and its way of doing things. From what I see here, LR does a few things automatically that need

Re: [darktable-user] Highlight Details

On lundi 9 avril 2018 19:28:15 CEST Timur Irikovich Davletshin wrote: > On Mon, 2018-04-09 at 10:06 -0700, Peter Cripps wrote: > > At risk of complicating this discussion, I processed an over-exposed > > RAW > > file in darktable and Lightroom. In both cases, I pulled the > > exposure > > back

Re: [darktable-user] Highlight Details

On 09/04/18 19:28, Timur Irikovich Davletshin wrote: On Mon, 2018-04-09 at 10:06 -0700, Peter Cripps wrote: At risk of complicating this discussion, I processed an over-exposed RAW file in darktable and Lightroom. In both cases, I pulled the exposure back by 2ev. No other tweaks. The results

Re: [darktable-user] Highlight Details

On Mon, 2018-04-09 at 10:06 -0700, Peter Cripps wrote: > At risk of complicating this discussion, I processed an over-exposed > RAW  > file in darktable and Lightroom. In both cases, I pulled the > exposure  > back by 2ev. No other tweaks. The results are quite different, and > seem  > to show

Re: [darktable-user] Highlight Details

At risk of complicating this discussion, I processed an over-exposed RAW file in darktable and Lightroom. In both cases, I pulled the exposure back by 2ev. No other tweaks. The results are quite different, and seem to show that dt is losing some of the high intensity pixels. (I said 'seem

Re: [darktable-user] Highlight Details

On Mon, Apr 9, 2018 at 7:09 AM, Matthieu Moy wrote: > - Original Message - > > From: "Chris" > > > Seems as though the pink colours appear in my image when I disable > 'highlight > > reconstruction'. > > Yes, this is expected. The module is

Re: [darktable-user] Highlight Details

Chris, a number of people spent their own time to help you understand the details of your problem. I see a lot of high-quality information in this thread, conveyed in a pretty polite way - definitely not "getting attacked by random people", as you state it. You just need to share your RAW file

Re: [darktable-user] Highlight Details

So glad I asked my question on this mailing list... love getting attacked by random people who never take a minute to try understand the other persons perspective. On Mon, 09 Apr 2018, 06:41 Patrick Shanahan wrote: > * Chris Cunnington [01-01-70

Re: [darktable-user] Highlight Details

* Chris Cunnington [01-01-70 12:34]: > 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

Re: [darktable-user] Highlight Details

- Original Message - > From: "Chris" > Seems as though the pink colours appear in my image when I disable 'highlight > reconstruction'. Yes, this is expected. The module is precisely here to remove this pink color. > With this disabled the Green & Blue channels

Re: [darktable-user] Highlight Details

Hi Chris, I post a screenshot of a similar problem, showing how I used the color reconstruction module. The screenshot contains a snapshot, so that half the image is the darktable default, including the basecurve. I drag the sliders until I get the best result. Prior to color reconstruction,

Re: [darktable-user] Highlight Details

On lundi 9 avril 2018 08:20:05 CEST Chris Cunnington wrote: > 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. Yes, you will have yuor reasons for a workflow that is valid

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. *)

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

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

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,

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

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

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 >

Re: [darktable-user] Highlight Details

If I slightly move the s 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

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

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

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

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: > >

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.

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

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

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

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

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

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

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 bydersjo...@gmail.com 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.

[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