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sRGB color shift in Firefox - (possibly) SOLVED! - Please help me find holes in this.

Forum|Forum|7 years ago
March 20, 2018
6 답변들
12339 조회

So this has been making me crazy for years and for some reason I cant find much online about it. I photograph in RAW and export files to Photoshop in 16bit sRGB or Adobe RGB (1998). I am also a searsoned photographer, re-toucher and photo/digital assistant. I am experienced. Yes I have a calibrated monitor

Here's the problem. - Open Firefox and also Safari and put them side by side on your screen. Take a look at my site (www.briandesimone.com)

There is an obvious heavy color shift between the 2 browsers. It definitely adds saturation and also pushes the reds and magentas. This doesn't just happen on my site. You can see all over the web. Even on Sue Bryces website. www.suebryce.com

SO THEN then I came across this article/technique from 2008 . https://www.viget.com/articles/the-mysterious-save-for-web-color-shift/

His suggestions to change the working space to 'my calibrated monitors profile,' and then export to Web while un-checking " the Convert to sRGB button seem crazy. Crazy talk I SAY!!. Especially from 2008

I decided to try this and it ACTUALLY DOES WORK. I have tested multiple images next to each other using this method in firefox and safari and its very close to exact each time.

Please help me find faults in this technique. ANY FAULTS.

What risks am I taking by working like this?

Thank you all for reading through

이 주제는 답변이 닫혔습니다.

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eatbrian작성자

Participating Frequently

Thank's everyone for all of the info and feedback. Super helpful and it's all starting to making sense.

Does it seem like a good idea to edit in sRGB and proof it in Wide Gamut to find a balance between the 2? And is it safe to assume that most modern monitors/screens will display wide gamut? It seems like its becoming more common than not.

gener7

Community Expert

Most go with laptops and even then some are holding on to older laptops. Here's an idea of Adobe RGB coverage:

Best Laptops for Photo Editing (Awesome 11 Picks for 2018)

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Test Screen Name

Legend

I agree with your statement to the extent it supports my statement that if you are designing for the web you should not be using a wide gamut monitor in the first place. It’s a fine tool for a different job.

D Fosse

Community Expert

https://forums.adobe.com/people/Test+Screen+Name wrote
if you are designing for the web you should not be using a wide gamut monitor in the first place.

Actually a wide gamut monitor can be your best friend for web work - if you understand what a wide gamut monitor is and what the implications are.

For one thing, it gives you immediate color management feedback. You can see right away if something's color managed or not.

Secondly, a wide gamut monitor covers sRGB 100%. That means sRGB emulation is usually very accurate. A standard gamut monitor can be pretty far off sRGB coverage, mainly because the primaries don't match up. Mismatched primaries cause shifts in individual colors, like blue skies.

The third advantage is more subtle. Since you have to use a color managed browser in the Firefox mode 1 configuration - assign sRGB/convert to monitor - that means you have full color management at all times. That's a fully color managed web interface, ladies and gentlemen, and you don't even need embedded profiles! No more guessing, no more "close enough".

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Test Screen Name

Legend

As a designer, it can be tough to realise that the end users don't care a bean about accurate colour. Go to a TV shop and look how the saturation is turned way up, because that's what people think is better colour.

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Test Screen Name

Legend

Your experience with Firefox seems the opposite of what is expected. But still, what is wrong?

By using your monitor profile rather than sRGB you are setting up to display wrong for most other people with a different monitor. Current sites, current browsers, current systems: this is a continuing issue. They were and will continue to be wrong for most people with a wide gamut monitor, these are expected to show web site colours wrong.

For this reason I will say bluntly: wide gamut monitors are not suitable for people making graphics for use on the web. It leads to desperate measures like the awful damaging one you found in the movie.

D Fosse

Community Expert

Stop, go back to start. You're off on the wrong track!

What happens here is that your files don't have an embedded color profile. Even if you embed the profile when exporting, many sites subsequently strip the profile.

Firefox is color managed as long as there is an embedded profile. At default settings, Firefox does not color manage files without an embedded profile. However, there is a setting you can enable that assigns sRGB to all untagged material. This allows the color management chain to operate again. It's known as "mode 1" as opposed to the default "mode 2".

This simple setting in Firefox allows full color management in all scenarios. This is why Firefox is an excellent browser to use with wide gamut monitors - it will always display absolutely correctly, identical to Photoshop at all times.

Now, Photoshop. What you have just done is to disable Photoshop's color management completely. So yes, it will match a non-color managed web browser - but it's all wrong, and completely unnecessary.

Set Photoshop's Color Settings back to defaults. Set working RGB to a standard color space like sRGB or Adobe RGB, and set color management policies to "Preserve Embedded Profiles".

This whole situation is very easily put right. Of course, you do need to have a good monitor profile - which is, one that accurately describes your monitor's actual, current response. A calibrator will give you that.

Here's how you set Firefox to Mode 1. Type "about:config" in the address bar and refresh:

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eatbrian작성자

Participating Frequently

So I applied your Firefox settings and restarted it and for as you said, it DID fix the color shifting. Thank you!

So my next question is- Why is Firefox being shipped with these particular color management modes set? Wouldn't this imply that any regular person who is using Firefox (and who likely doesn't know or care about color settings) would be viewing the internet with the over saturated images without even knowing it.. ??

I would never expect anyone to know how to change their Firefox color settings before looking at my work.

Thanks again!
B

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eatbrian작성자

Participating Frequently

eatbrian wrote
Why is Firefox being shipped with these particular color management modes set?

I absolutely agree - the mode 1 setting should have been the default. I don't really see the point in the mode 2 setting - but for many years this was also Safari's behavior. So that sort of established a standard, maybe that's why.

Apple was forced to change this when they started fitting their iMacs and MBP's with wide gamut displays. With such a display, "no color management" simply doesn't work - sRGB material appears grossly oversaturated. You simply have to use the monitor profile and convert the data before it goes to screen. But for that to work you need to have a source profile. There has to be something to convert from.

And that's what mode 1 does, by assigning sRGB to everything that doesn't have a profile. Then it's possible to convert into the monitor profile.

So if this is the case, can everyone here agree that:

No matter how careful one is with their color management workflow. If you use Firefox with its original/out of the box settings- all colors/images viewed within that browser will appear grossly over-saturated and inaccurate relative to the colors in the original file?

Can everyone agree on this?

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Test Screen Name

Legend

I’d say that the fault in your technique is that it fixes it on YOUR SYSTEM. May well make it worse on others. Is this a wide gamut monitor? If so, this may well be normal and wrong to try to fix it.

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eatbrian작성자

Participating Frequently

Thank you for taking the time to reply.

I have a 2012 Retina MBP - Calibrated monitor. And also an iMac (Retina 5K, 27-inch, Late 2015) - Also Calibrated. The strong coloro shift in Firefox is apparent on both computers and on countless other computers I've done quick tests with.

In what type of situation might it make it worse and how can you prove it?

Respectfully

Brian

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