Re: [darktable-dev] DT bad on skin tones?

2019-06-03 Thread dt-list
dt-l...@stefan-klinger.de (2019-Jun-04, excerpt): > and not enough good searchable concise test. "text", not "test". Case in point: Text is easier to edit/bugfix/adapt later on. -- http://stefan-klinger.deo/X I prefer receiving plain text messages, not

Re: [darktable-dev] DT bad on skin tones?

2019-06-03 Thread dt-list
Aurélien Pierre (2019-May-29, excerpt): > I guess I will have to record video tutorials in English then… No, please, just write it down. I hate watching videos until the presenter finally gets to the point. There's already too many videos and not enough good searchable concise test. --

Re: [darktable-dev] DT bad on skin tones?

2019-06-01 Thread jys
On Fri, May 31, 2019, at 13:15, Heiko Bauke wrote: > Hi, > > Am 29.05.19 um 22:14 schrieb jys: > > Since the basecurve module must be retained, I'm wondering if, now > > that its default position has been moved to after colorin, is there > > anything preventing it from being moved even further

Re: [darktable-dev] DT bad on skin tones?

2019-05-31 Thread Heiko Bauke
Hi, Am 29.05.19 um 22:14 schrieb jys: Since the basecurve module must be retained, I'm wondering if, now that its default position has been moved to after colorin, is there anything preventing it from being moved even further along the pipe, to the most harmless possible location (whatever that

Re: [darktable-dev] DT bad on skin tones?

2019-05-30 Thread Florian W
t; > https://support.google.com/youtube/answer/6373554 > > > > Tim > > > > *From:* Matthias Andree > *Sent:* Thursday, May 30, 2019 8:09 AM > *To:* darktable-dev@lists.darktable.org > *Subject:* Re: [darktable-dev] DT bad on skin tones? > > > > Am 29.

RE: [darktable-dev] DT bad on skin tones?

2019-05-30 Thread n614cd
it. https://support.google.com/youtube/answer/6373554 Tim From: Matthias Andree Sent: Thursday, May 30, 2019 8:09 AM To: darktable-dev@lists.darktable.org Subject: Re: [darktable-dev] DT bad on skin tones? Am 29.05.19 um 12:28 schrieb Aurélien Pierre: I guess I will have to record

Re: [darktable-dev] DT bad on skin tones?

2019-05-30 Thread Matthias Andree
Am 29.05.19 um 12:28 schrieb Aurélien Pierre: > > I guess I will have to record video tutorials in English then… > Or find someone to translate French to English. Subtitles/captions have been proposed by Florian, too. ___

Re: [darktable-dev] DT bad on skin tones?

2019-05-29 Thread jys
On Tue, May 28, 2019, at 03:25, Aurélien Pierre wrote: > I personally think darktable should default to a neutral look (dark and > ugly), but not all the dev team agrees. I guess having a very neutral > picture (only demosaiced) as a default starting point in the darkroom > would freak out

Re: [darktable-dev] DT bad on skin tones?

2019-05-29 Thread Florian W
If there's some interest maybe i can dedicate some time to create English subs for existing good videos on Darktable from you, rawfiner, carafife... But not before July, I have a competition for a PhD grant at the end of June. Even though I prefer coding improvements :-P I already have a list of

Re: [darktable-dev] DT bad on skin tones?

2019-05-29 Thread paul sorenson
Florian - thanks I will check these out. My French not so good and I have never used lightroom. I have watched quite a few videos - the ones I have seen don't necessarily go into the relative merits of different modules (eg base vs tone curve). On 5/28/19 10:48 PM, Florian W wrote: > @Paul > >

Re: [darktable-dev] DT bad on skin tones?

2019-05-29 Thread François Tissandier
"I personally think darktable should default to a neutral look (dark and ugly), but not all the dev team agrees." It all depends what target you have for Darktable. There are probably and surely not only pro photographers using it, and I'm not sure if all the passionate amateurs are doing enough

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Florian W
@Paul Appart from the manual, there's several people on youtube either presenting what you can do module per module and what effect on an image can be expected for each slider (technical approach), or doing screen recording of photographs edit (retouch/artistic approach) for a full processing or

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Andreas Schneider
On Wednesday, May 29, 2019 5:48:30 AM CEST paul sorenson wrote: > This thread is fascinating to me. Are there resources out there for > those who want to learn a more technical approach to editing with > Darktable. As has been mentioned elsewhere, the manual kind of presents > modules in isolation

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread paul sorenson
This thread is fascinating to me. Are there resources out there for those who want to learn a more technical approach to editing with Darktable. As has been mentioned elsewhere, the manual kind of presents modules in isolation eg the base curve docs don't come with a warning - well maybe a hint in

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Aurélien Pierre
A raw "picture" is just a text file filled with RGB code values. These code values are not data and need to be decoded, by the software but also by the user, to be turned into data (meaning : colors). The software can do some of the low-level decoding, but at the end, only the user knows if the 80

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Florian W
" Sure, there are people who want to fight the theory of signal processing to complain about the consequences, and people who do the right thing at the right time in the pixelpipe. Surprisingly, the latter get better results faster. Thanks for trying to make my point a different one than what I

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Moritz Mœller
I couldn't have said it better than Aurélien. I have a default setting for basecurve that matches any input and is always linear. This essentially makes the the module do nothing. And I have this since I started using DT. Caveat: I'm a VFX professional. I know a bit about this topic. ;) .mm

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread parafin
While I really like the idea behind filmic module, still it's not always easy to get the colors I want with it. I guess, depending on the camera, base curve might give better colors by default, but will make much trouble in other departments. Obvious point that it's not that easy as just using

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Aurélien Pierre
Hi ! That falls back to the difference between Lightroom and Capture One colors… If the in-camera software has been tweaked for warmer skins, you won't get the same result with an all-purpose matrice alone. In color balance, push the highlights slider towards magenta (opposite of green) with a

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread François Tissandier
But since apparently the people in charge of Darktable know about this : "which was a design mistake in the first place because you are applying a matrice profile expecting scene-linear input on perceptually-encoded data" are there plans to fix the design mistake ? I know that you are offering

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Aurélien Pierre
Sure, there are people who want to fight the theory of signal processing to complain about the consequences, and people who do the right thing at the right time in the pixelpipe. Surprisingly, the latter get better results faster. Filmic is simple to use if you understand what exposure means in

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Bob Tregilus
On 5/28/19, François Tissandier wrote: >  > > Indeed the first thing I'm doing is applying a style either switching to > the base curve, or disabling the module to use filmic. I love what I can > get out of filmic often, but to be honest Aurélien, filmic is also a bit > complex to use. I'm

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread rawfiner
It is not a matter of digital development choices here, nor of one's own tastes or choices, it is a matter of trying to know whether the input color profiles are well applied in darktable. We can't compare colors if we use modules that are messing the colors (and we know base curve does that). So

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread François Tissandier
The base curve can be still used with the standard one instead of the camera one, colours are quite fine then. I was doing that before the arrival of filmic. So the base curve can be kept. And indeed it's good to have the choice. Le mar. 28 mai 2019 à 10:00, Florian W a écrit : > Not everyone

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Florian W
Not everyone has the same approach of digital development (eg. Film like response vs more creative curve editing, with its disadvantages) and one of the strong advantage of Darktable is allowing all these use cases. Starting a war about this won't get us anywhere in the issue at hand here. Le

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread François Tissandier
 Indeed the first thing I'm doing is applying a style either switching to the base curve, or disabling the module to use filmic. I love what I can get out of filmic often, but to be honest Aurélien, filmic is also a bit complex to use. I'm trying the presets, but often I have to change the

Re: [darktable-dev] DT bad on skin tones?

2019-05-28 Thread Aurélien Pierre
For the last time : *BASE CURVES ARE EVIL, CRAP, GARBAGE, NO-GO, DON'T TOUCH, BIO HAZARD, KEEP AWAY, HUN HUN, SURVIVORS WILL BE SHOT AGAIN.* I wouldn't have taken 2 months of my life to develop filmic if base curves had worked as expected. Base curves are a broken design and will always

Re: [darktable-dev] DT bad on skin tones?

2019-05-27 Thread jys
On Mon, May 27, 2019, at 13:08, François Tissandier wrote: > > I think I'm maybe seeing the same kind of pb with the Sony A7RII and > A7RIII matrix. I always had problems with dark blues on the Sony > cameras, and I'm often changing the base curve to "neutral" to avoid > having big issues.

Re: [darktable-dev] DT bad on skin tones?

2019-05-27 Thread Christian
Am 27.05.2019 um 01:09 schrieb Šarūnas: Hi, I re-did the test with the Fuji X-E2 version of the test-chart shoot and the skin colors are much better. This interest me to, however it is not obvious, what you [re-]did to get better colors. Care to elaborate? Thanks! Same settings. Just some

Re: [darktable-dev] DT bad on skin tones?

2019-05-26 Thread Moritz Moeller
On 27.5.19 01:09, Šarūnas wrote: On 5/25/19 3:11 PM, Christian wrote: Hi, I re-did the test with the Fuji X-E2 version of the test-chart shoot and the skin colors are much better. This interest me to, however it is not obvious, what you [re-]did to get better colors. Care to elaborate?

Re: [darktable-dev] DT bad on skin tones?

2019-05-26 Thread Šarūnas
On 5/25/19 3:11 PM, Christian wrote: > Hi, I re-did the test with the Fuji X-E2 version of the test-chart > shoot and the skin colors are much better. This interest me to, however it is not obvious, what you [re-]did to get better colors. Care to elaborate? Thanks! Šarūnas

Re: [darktable-dev] DT bad on skin tones?

2019-05-26 Thread Aurélien Pierre
darktable handles the matrices all the same way. It's simple linear algebra, if it works for some matrices, it will work for all matrices. But if the coefficients of the matrice are wrong, nothing magical will happen. Le 25/05/2019 à 21:11, Christian a écrit : > Hi, > I re-did the test with the

Re: [darktable-dev] DT bad on skin tones?

2019-05-25 Thread Christian
Hi, I re-did the test with the Fuji X-E2 version of the test-chart shoot and the skin colors are much better. Maybe this helps in identifying the problem. Link to RAW file: https://www.dpreview.com/reviews/image-comparison/download-image?s3Key=6641b9cbeec04777b85655fad61e4b4d.raf Chris Am

Re: [darktable-dev] DT bad on skin tones?

2019-05-25 Thread Christian
Hi Florian, thanks for pointing out a possible workaround (dcraw), but in general I prefer as few steps as possible in my workflow. :-) Concerning input profiles: If dcraw/RawTherapee's profiles are good, maybe they could be used in DT too... Chris Am 24.05.2019 um 22:21 schrieb Florian Hühn:

Re: [darktable-dev] DT bad on skin tones?

2019-05-24 Thread Florian Hühn
> So the input color profile (camera RGB -> XYZ transformation matrice) is wrong in darktable. Maybe it is not the the color matrix itself that is wrong (source code says it was extracted from Adobe DNG Converter and those matrices are usually very good), but handling the color matrix in DT is

Re: [darktable-dev] DT bad on skin tones?

2019-05-24 Thread Aurélien Pierre
So the input color profile (camera RGB -> XYZ transformation matrice) is wrong in darktable. Can you export an ICC input profile from whatever software the good picture comes from ? Aurélien. Le 24/05/2019 à 20:40, William Ferguson a écrit : > Perhaps a better check for color accuracy is

Re: [darktable-dev] DT bad on skin tones?

2019-05-24 Thread William Ferguson
Perhaps a better check for color accuracy is checking the color checker included in the raw? Regards, Bill On Fri, May 24, 2019 at 2:01 PM Moritz Moeller wrote: > On 24.5.19 19:26, David Vincent-Jones wrote: > > Raw is RAW without processing. It is up to you to manipulate the > > raw

Re: [darktable-dev] DT bad on skin tones?

2019-05-24 Thread Moritz Moeller
On 24.5.19 19:26, David Vincent-Jones wrote: Raw is RAW without processing. It is up to you to manipulate the raw data to achieve the look that you want. [...] OP clearly said they had no modules that shift color turned on. The DT processed image clearly has green tint in the shadows.

Re: [darktable-dev] DT bad on skin tones?

2019-05-24 Thread David Vincent-Jones
Raw is RAW without processing. It is up to you to manipulate the raw data to achieve the look that you want. There are 'styles' in dt that will allow you to simulate provia if that is the look that you want. On 2019-05-24 9:20 a.m., Christian wrote: Hi, Attached is a comparison between