Participant

Question

Premiere sRGB graphics import show different results on different imacs

Forum|Forum|7 years ago
November 2, 2018
3 replies
1712 views

When importing a sRGB graphic like a logo, it appears dramatically different (i.e. blues are desaturated) on my new iMacPro/Mojave 10.14/PR 2019 than on any other iMac inhouse, where the colors look perfectly like in PS and therefore "right".

In a via ME exported clip the graphic elements also look different than ME export done on another Mac.

Film colors are perfectly similar, problem is only with sRGB imported graphics. Graphics imported with NO profile assigned is also similar.

Problem also appeared on my earlier system with MacPro and PR 2018, system was mirrored to new iMacPro.

We are working with calibrated Eizo and Sony monitors for print and video post production.

Thank you for any idea how this strange behaviour could be fixed.

This topic has been closed for replies.

francis-crossman10980533

Adobe Employee

There are several things going one here. Hopefully, we can get you on the right path. TL;DR - Enable color management in all apps and work in Rec709 across the board.

Issue #1: sRGB images don't look right in PPro

This is expected
You should be preparing graphics in Rec709
In PS, you can choose a color profile when creating a new document, or convert an existing document to Rec709 in the Edit Menu - "Convert to Profile" or "Assign Profile". The one that makes your colors look right to your eye is the correct choice - choose Rec709 Gamma 2.4 profile. Before making this judgement, check your PS color settings are set to "Monitor" in Edit>Color Settings. This will ensure that colors are displayed correctly on your particular monitor.
PPro does not convert color profiles of most imported media, so Rec709 is assumed. An sRGB PSD will definitely look wrong in PPro.

Issue #2: Display Color Management should be ON across the board

Check your display ICC profile in System Preferences>Displays>Color - unless you have a special calibration profile, I recommend setting it to the top one in the list (above the line) which is the one designed for the specific display you have.
Enable Display Color Management in PPro/AME - Preferences>General
Display color management will convert from the internal working space in PPro (Rec709) to the ICC profile of the display you checked above. This way colors are displayed correctly
One important thing to understand about Display Color Management is that it has absolutely no affect on the exported file. It only affects what you see on your display inside PPro/AME.

Issue #3: QC - how are you judging that colors look wrong/right?

It sounds like you have a very professional setup with calibrated external transmit monitors. Use those for judging colors above all else.
But, when comparing colors on the desktop displays, DO NOT USE QUICKTIME PLAYER. QuickTime player has a long standing gamma issue, which makes it display incorrect colors.
Comparing colors that are displayed in-app between Premiere Pro and Photoshop (with color management enables and properly configured in both) is valid, and those colors are expected to match.

Hope this helps . . .

Andreas_Vienna PaintAuthor

Participant

Thank you for your detailed information!

@issue 1: the Problem was not that sRGB colors look generally "wrong", the issue was that they look different on 2 different systems with overall the same settings.

They look "right" on one system (Rec709 and sRGB does make only little difference in colors), "wrong" on other.

BUT!!!!!!: I found the problem today!!!!!!!

The ONLY difference between my system and the other was the color WORKSPACE in PS. I have eci-rgb-v2 because of my print work, the other system has sRGB. Should not be an issue, as when I am preparing graphics in PS for video, I work of course in sRGB.

So I tried today setting the PS color workspace in the settings to sRGB, and look: PR shows the right colors!!!!

Strangely enough, on a 3rd system with exactly my settings (eci-rgb as workspace in PS), PR shows right colors anyway!

Does this sound in any way understandable? PS color workspace effects PR color rendering?????

And to your issue#2, display color management did make a difference in render: switched OFF in ME, the formerly right colors from the PR display were wrong again, switched ON, colors were right.

Here is the abstract:

1 - when I mean color differences, I mean huge ones like in my example above. With what I found out today, they are like assigning a print profile like eci-rgb to a sRGB file. It is not a Gamma issue. I am not comparing cross-platform like QT to PR, I only compare QT to QT, PR to PR, PR to PS

2 - on my system the PS color workspace affects the PR color interpretation. On another system inhouse it does not.

3 - eci-rgb color workspace in PS produces wrong colors in PR (embedded profiles are sRGB of course!), with all display color management checked.

4 - ME does render wrong colors when display color management is not checked.

5 - and here again an example of the color differences I was talking about. Bottom colors are right, top ones wrong.

So there is a "workaround" for me, but still no proper solution of the situation.

Anyway, have a good day,

Andreas

E

excited_Genie16B8

Legend

I think you need to start with the proper viewing conditions. For video, that means a dedicated I/O device like the Blacikmagic Intensity or the AJA Kona connected to the best quality calibrated display you can afford.

Only that will show you an accurate signal, which is the starting point for all color work.

Andreas_Vienna PaintAuthor

Participant

Thank you Jim, and Neil,

one and the same sequence, rendered on different macs, produces different results when I compare the result on any of the screens, like shown in my example above.

So in my view it cannot have to do anything with viewing conditions.

We are working with calibrated systems like Sony reference monitors with blackmagic.

We have qualified staff and contact to our screen, Mac and Adobe dealers, but there is absolutely no idea why we have this situation.

R Neil Haugen

Legend

This is gonna take more looking at by Wes I think.

Neil

Everyone's mileage always varies ...

R Neil Haugen

Legend

Have you tried either checking or unchecking the 'enable display color management' option in the preferences?

And note, there is a slight difference between the sRGB non-tagged simple graphics/image file representation in the standards for that format, and sRGB video standards from Rec709. Black & white points would be the same, but small differences in contrast/tonality will be apparent. Segments will be lighter/darker in comparison due to some subtle curves-like differences in the format standards.

Tagging those files in Photoshop as Rec 709-sRGB might fix that issue.

Neil

Everyone's mileage always varies ...

Andreas_Vienna PaintAuthor

Participant

Thank you Neil! "enable display color management" is the same on every mac. The difference between colors is really big. And all macs show "right" colors, like saved in PS with sRGB, only my system shows them "wrong", and I mean totally wrong, see picture, left is PR, right is PS.

And that difference also occurs in the rendered mp4, so display color management should not be an issue.

On other systems in my company they look perfectly the same.

Thank you again.

Andreas

R Neil Haugen

Legend

Huh. Maybe Wes Howell might be able to help?

Neil

Everyone's mileage always varies ...

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