Re: [darktable-user] White balance for old images changed

Nevermind. I just found the bug that exactly matches my finding: https://github.com/darktable-org/darktable/issues/7145 On 09.04.21 22:54, werzi2...@gmx.de wrote: Hello everybody, for the last couple of days I was checking my image library which also included having a closer look at some

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

Hi Bernhard, sorry for the late reply, I've been on vacation. I looked briefly at the resources you provided, but I think they don't solve the problem of flickering white balance / color temperature. However, in the mean time I cloned darktable's source code repository and skimmed through the

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

> On 01 Aug 2018, at 19:21, Bernhard wrote: > > I remembered there was something that reminded me at lrtimelaps - but using > darktable - in the past. > A quick search showed this up: > https://discuss.pixls.us/t/how-do-you-create-a-time-lapse-on-darktable/8094/14 > >

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

I remembered there was something that reminded me at lrtimelaps - but using darktable - in the past. A quick search showed this up: https://discuss.pixls.us/t/how-do-you-create-a-time-lapse-on-darktable/8094/14 is the newer approach https://www.youtube.com/watch?v=C-0bCAIJR0c is the older one.

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] White balance Spot Selection & History stack copying

Jochen Keil (2018-Aug-01, excerpt): > Is there a way to tell darktable that it should analyze each image on its > own using the selected spot area for white balance? I doubt it. I've been asking for the same thing with respect to exposure correction (metering a certain region on all images for

Re: [darktable-user] white balance

Hello, the card I use is two sided, it has white grey and black on one side and the standard 24 colors on the other and yes you can use Adobe DNG to produce a color profile for use in Lightroom and rawtherapee. However I use it mostly for a custom WB in camera on my 14 year old DSLR canon it is

Re: [darktable-user] white balance

On samedi 25 février 2017 01:38:01 CET Marcus Sundman wrote: > Well, first we need sensible support for color cards in darktable. (Now > you have to go through crazy many hoops to set your whitebalance from a > color card, including multiple import/export and profile generation in > an external

Re: [darktable-user] white balance

Note that if you take a picture of a white card and fill the frame with it in an auto-exposure mode it will come out grey anyway. What I am not sure has been completely addresses is how all of this would work together. I assume you would not have a card in each shot but would start a shoot with

Re: [darktable-user] white balance

On Tuesday, 21 February 2017 16:16:30 GMT Michael wrote: > is there something where we can take a picture of a gray card and then we > click on it and then dt will adjust all of the colors so that the gray card > is > 33-33-33%? > > by the way: what is the color of the remaining 1% Anyone wanting

Re: [darktable-user] white balance

So with raw and dt it is okay to zoom in on the spot? What I mean is when you take the picture do you take one (with the white spot in it) or two (one with and one without). I'm thinking two but just to be sure. You know. I actually like this idea. I'm going to tape a couple of pieces

Re: [darktable-user] white balance

There is a way more reliable DIY way than printing: https://photographylife.com/diy-reliable-and-cheap-universal-white-balance-reference-device I tried it and compared the result with a real gray card. I was unable to see a difference between both methods. So, teflon comes close enough at

Re: [darktable-user] white balance

The reason I didn't get it is that it was sent to spam sorry about the clutter On Wed, Feb 22, 2017 at 3:23 PM, Michael wrote: > I always thought white balance should be done off of a white card not that > I understand how (why might be a better term) selecting an area of

Re: [darktable-user] white balance

I always thought white balance should be done off of a white card not that I understand how (why might be a better term) selecting an area of a color (or even multiple colors) adjusts all colors or how it does it. I would think if you should select a 18% gray/ x brightness white card area the

Re: [darktable-user] white balance

Hi Jean-Luc, how would you proceed in detail with this module? Would you start with the lift, gain or gamma or a little from all three? How many patches would you pick? I have a few pictures with heavy color casts (from slide scanning) and while I can get good results the effort is often very

Re: [darktable-user] white balance

Hi, I think this post is going outside the original question. The original question was about a grey card and white balance (I I understood corrrectly). And what to do if the grey card doesnt appear "neutral" in darktable. 1 - Grey card and white balance. The fact that the card is 18%, 22% or

Re: [darktable-user] white balance

On 21/02/17 23:16, Michael wrote: is there something where we can take a picture of a gray card and then we click on it and then dt will adjust all of the colors so that the gray card is 33-33-33%? Usually you use "18% gray" meaning a card that reflects 18% of the light in the visible

Re: [darktable-user] white balance

Not sure I understand but if you take a picture of a gray card - you can use the white balance module and in the drop down select custom and then select from the gray patch that you have taken picture from. https://www.darktable.org/usermanual/ch03s04.html.php 3.4.1.10. White balance the

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

One more thing regarding the colour picker: it works in your display's colour space, which may affect its Lab readings - the devs would know. https://www.darktable.org/usermanual/ch03s03s04.html.php darktable user

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

My bad, sorry, I thought the card had colour patches, too - I've only ever used a simple Whibal card, and does not provide Lab values. Also, I don't understand why you mentioned exposure in your post, I thought you expected darktable to adjust it automatically when you picked white balance from

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

Le 05/09/2016 à 13:47, KOVÁCS István a écrit : > Hi, > > If I get this correctly, the card has grey patches as well as colour ones. no, only grey (and blck/white, but I don't really use them): http://www.scuadra.fr/en/charte.php?Language=en it's mostly for WB > The spot white balance tool

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

Hi, If I get this correctly, the card has grey patches as well as colour ones. The spot white balance tool adjusts white balance only, meaning that: - after adjustments, grey should be grey (neutral) - exposure is to be done independently - colour in non-grey patches, as well as the lightness of

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

Le 05/09/2016 à 11:13, Sebastian a écrit : > Have you tried the spot white balance preset? > > See also https://www.darktable.org/usermanual/ch03s04.html.php#whitebalance > > that's what I use, but after using the spot WB, I check the Lab values using the color picker on the same area and

Re: [darktable-user] White balance on a TrueColor scuadra, using provided Lab values

Have you tried the spot white balance preset? See also https://www.darktable.org/usermanual/ch03s04.html.php#whitebalance On 09/04/2016 07:51 PM, Emmanuel Lacour wrote: > Dear DT users, > > > I have a TruColor grey card, and I just saw that when I use the WB > module to spot on it, the measured

Re: [darktable-user] White balance - difference between camera and camera neutral

https://github.com/darktable-org/darktable/blob/master/doc/usermanual/darkroom/modules/basic/whitebalance.xml#L82-L100 On Fri, Sep 2, 2016 at 10:11 PM, Niranjan Rao wrote: > Greetings, > > Under white balance module, I see two entries for camera and camera neutral. > What is

Re: [darktable-user] White balance temperature

Hi, Try a simple experiment : set your camera WB to tungsten, and take an outside picture. Get the JPEG from the camera. It will be blue... so too cool. It is the same in the raw processor, if it is an exterior daylight SCENE (quite neutral : 5500-6500K) and you set a warm colour temperature