Assign Profile Without Changing Numbers (Values)?

[Lavitas Macutis]

Dear Community, 
 
Is there a way to assign a profile to a given image without changing anything at all in the image? (Meaning: Pretending it is this and that profile but no more than that?)
 
Thanks!

[Sameer K]

Hey, @Lavitas Macutis. Welcome to the Photoshop Community. 

You can add a comment to one of the fields in the Metadata from the FFile File Info panel. If the files are yet to be processed in Photoshop, you can use Notes from Windows> Notes in Photoshop to leave written notes. 

Let me know if this helps. Thanks!
Sameer K

(Type '@' and type my name to mention me when you reply)

[rudo123]

Menu Edit -> Assign Profile...

[D Fosse]

Assign Profile does not change any numbers. That's the whole point.

And because no numbers are changed, but those numbers now refer to a wholly different coordinate system, the appearance of the image changes.

Convert to Profile recalculates all numbers into the new color space, the new coordinate system, so that appearance is preserved.

You can't move from one color space to another and "pretend" the numbers mean the same when they just don't.

Without color management and icc profiles, different color spaces would be impossible. There could only be one color space that we all needed to use all the time.

[Lavitas Macutis]

Yes, you are absolutely right, I'm sorry, I was fooled by the difference in appearance. I didn't suppose it would change unless I switch to proof view. But it does. Thanks so much for your patient and kind replies!

[Stephen Marsh]

Assign Profile does not change any numbers. That's the whole point.

By D Fosse

The document mode values do not change, on that we can all agree. The Lab and other derived values will change, unless the profile being assigned is essentially the same as the current profile.

[D Fosse]

Yes - but let's not confuse the issue with facts 😉

The point is that the RGB numbers don't change.

[Stephen Marsh]

Yes - but let's not confuse the issue with facts 😉

There's a second term of office proving that point daily!

The point is that the RGB numbers don't change.

By D Fosse

If the source document is RGB mode, then yes, I agree!  😉