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Question

Is the color profile 'c2' the same as 'sRGB'?

Forum|Forum|4 years ago
April 22, 2021
2 replies
4092 views

Hello

Are there any significant differences between 'c2' and 'sRGB'?

How come that, although all the settings in photoshop are put on sRGB, Bridge still reads the image as c2?

The questions result from to following problem: I'm a teacher Photoshop. For an assignment I asked to deliver the image in sRGB. Still in bridge half of the images I got where in the colorprofile 'c2'. When i opened the info dialogue screen of mac and windows it tells me the image is sRGB?

I need to solve this problem so I give the fair grade.

Thank you for any tips and advice. A golden google link would also be very helpfull since I could't find the straight the answer.

All the best,

Problem or error

This topic has been closed for replies.

davescm

Community Expert

It is close but not quite the same as sRGB (the transfer curve is an approximation). It seems to have been developed by Facebook to keep the profile size down on thumbnail images.

Some info here:

https://www.facebook.com/notes/facebook-engineering/under-the-hood-improving-facebook-photos/10150630639853920

The author refers to it as Tiny RGB but the example image in the article downloads with the C2 profile

Dave

J

Jeroen5FB4Author

Participant

Thank you for the extra information. It gave me a new lead, and I found the answer.

If the student uses 'Save as' but they do not check the box 'icc Profile: sRGB...' (image in attachment), the image will not have a color profile. Hence bridge and photoshop aplies the similar 'c2' colorprofile automaticly when opened. I found this lead on this website: https://phabricator.wikimedia.org/T134498

Anyway, I know what to do. Thank you all very much for the help.

c.pfaffenbichler

Community Expert

»Hence bridge and photoshop aplies the similar 'c2' colorprofile automaticly when opened.«

If Photoshop automatically attaches a profile you may want to check your Edit > Color Settings.

And again: Please set the Status Bar to »Document Profile« and post a screenshot of an affected image open in Photoshop.

c.pfaffenbichler

Community Expert

Please set the Status Bar to »Document Profile« and post a screenshot of an affected image open in Photoshop.

Were the images somehow dragged through Facebook?

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