All,
My first comment after following and using DT for 2 years. The question I have about the discussion about JPG, is why. Modifying JPG's in that format is fruitless. JPG is a 1 time use to send to some printers and vendors. Reworking JPG's we all know is a diminishing return function. It is a waste of time. Those that do not understand this should not be the developer's concern. I never shoot JPG. So why would I , the user of a high level program to make the original worse.
I've tried to explain this function to many amateurs and it goes no where. They do not understand RAW and just want to take pictures, not capture the art their eye sees.
Keep up the good work.
Regards,
Al F
-------- Original Message --------
Subject: Re: [darktable-dev] idea to consider
From: Šarūnas <saru...@mailbox.org>
Date: Sun, August 30, 2020 9:06 pm
To: darktable-dev@lists.darktable.org
On 8/30/20 7:08 PM, Aurélien Pierre wrote:
> 1. that still doesn't give you the jpeg cooking recipe, which is more
> complicated than building an ad-hoc LUT or a tonecurve if local filters
> are applied (and there are),
>
> 2. what is it with people editing jpegs ? That's nonsensical ! Not the
> same workflow, not the same maths, not the same filters, not the same
> pipeline, not the same software. A raw is an output-agnostic linearly
> encoded master picture that you can still salvage from the beginning, a
> jpeg is already non-linearly cooked for display assuming dim viewing
> conditions (as per sRGB standard) and firmware blackboxes.
>
> People need to stop dealing with image processing as if everyone was
> right and correctness didn't matter. It's not a silly magic game of
> pixels values, there are assumptions to assert underneath the hood.
> Sometimes I wish image processing could kill people, as civil
> engineering or medicine do, so people would start taking it seriously
> and check the theory behind before doing shit carelessly. That kind of
> silly workflow will blow up in your face 50 % of times because there is
> zero reliability in handling pre-baked jpegs with all the firmwares
> discrepancies in a software designed to unroll image operations on raw
> files. Then I will let you deal with users who don't understand why the
> workflow is so unpredictable.
>
> Indulging bad habits of users is not a solution, especially since we
> don't sell anything/whore ourselves out. Let's be rigorous about pixels
> operations and do things properly. Want to edit jpegs ? Use bloody
> Photoshop and the likes. They are good at doing shit, don't care about
> color consistency, don't care about light emissions, don't even do
> associated alpha occlusion properly. Yet people love them because
> marketing expenses make up for dev mediocrity and overall stupidity.
Amen.
--
Šarūnas Burdulis
math.dartmouth.edu/~sarunas
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