Is it possible to "invert" an ICC-profile?


I have the following problem:
I have to scans from the same image but from different scanners.

  • Image #1 has the Adobe RGB profile assigned
  • Image #2 has the scanner profile assigned
    So image #2 looks like image #1.
    But what I want is image #1 to look like image #2.

So I kind of need an inverted profile of the scanner profile.

I hope this makes any sense.



Well… Not yet

If image 2 looks like image 1 then doesn’t image 1 look like image 2?


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Yes, but only after I assigned the scanner-profile to image #2.
In the beginning (e.g. no profile assigned) both images look different.

What I want is the exact opposite of what I already achieve by assigning the scanner profile to image #2:

Assigning a profile to image #1 that it looks like image #2.
I thought/hope that there is a way to revert/invert the scanner profile.

On May 29, 2012, at 1:50 AM, johnnymoped wrote:

Ok it sounds like one of your images is in scannerRGB while the other is in AdobeRGB. You want to convert the AdobeRGB image back into scannerRGB.

I don’t know of any easy way to do this. Scanner profiles are one-way, only allowing transformations from scanner space to another space.

Perhaps there’s a way of taking a scanner profile and generating a different kind of profile (normal RGB device profile) from its data but I don’t know of a tool that would allow that