Photoshop color dialog does not match appearance of non-color managed application

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  • Problem
  • Updated 6 years ago
  • Not a Problem
  • (Edited)
Hi Guys!
Look like I found the serious bug in Photoshop.
Briefly speaking it how the photoshop Color Dialog lay about the real color value.
Plz see my topic about that on RSDN here: http://www.rsdn.ru/forum/life/4998737.1

BTW I'm also software developer, so if you have any addition question about this problem plz ask me.
As a good solution if it really possible invite me on interview on software developer position on Adobe company. I would be happy about it. If it possible of course.

My contacts: ruslan.teliuk@gmail.com
Skype: TarantaTous

Thanks.

This is Photoshop dialog:


In this case R should be constant, but it's not.

This is dialog of my application:


In my application all OK.
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Ruslan Teliuk

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Posted 6 years ago

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Chris Cox

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The value you pick is relative to the document you are using.
The Photoshop dialog is correct.
Then the values from the document colorspace are converted to your display colorspace to preserve the appearance.

But your application does not appear to be using the same colorspace, or is not color managed.

And the "color cop" in your screen captures appears to be showing color values completely unrelated to the picked colors.
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Ruslan Teliuk

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Hi Chris,
So if I understand correctly, the are exist some coefficients (offsets/shifts) that make color correction depends from the what is the "color model" settings.
Hm... this is interesting becouse it's not clear what kind of these corrections I see that it has a more complicated dependencies.
See screenshots plz:
1)

2)


BTW I did this screenshots without opening or create documents in PS.
So I suppose that are exist some defaults settings that set this color corrections?
Is it possible a change it from PS UI?

Thanks,

Ruslan.
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Chris Cox

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Yeah, you don't understand correctly. You need to spend some time reading up on color management and ICC profiles.

Yes, with no documents open Photoshop defaults to the working space profiles (the default color definitions).
Yes, you can change the corrections - but first you need to understand them and why they are being applied (and should be applied).
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Ruslan Teliuk

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Chris,
Thanks you for information, seems like I need understand the concept of ICC profiles and how it work.
BTW what kind of knowledge a need to acquire the C++ developer for join to the Adobe Photoshop team?
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Chris Cox

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Our team is a bit picky.
We look for a good background in programming (algorithms, debugging, etc.), plus knowledge of things related to Photoshop (photography, printing, etc.) is a big bonus (so you understand customers).
But most of it comes down to maturity and experience: you need to understand the value of performance, localization, memory usage, stability, user interface, etc. (and right out of college, most just don't understand).