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I have this workflow to scan images:


1. Scan the image as a raw Tiff without embedding a color profile.

2. Open it in Affinity Photo (formally Photoshop).

3. Assign the color profile of my scanner.

4. Convert it to my desired working color profile (Adobe RGB1998).

5. Do my color corrections and save it. Done.


In Photoshop: If I open an image file that has no embedded color profile, then Photoshop asks me immediately to assign a color profile that I can choose from the list. That's the point where I select my scanner profile.


In Affinity Photo: AP will automatically assign my preset working color profile (Adobe RGB1998) if I open an image file that has no embedded color profile. 


My question: AP has assigned a wrong color profile to my scanned image at this point.

Will the image remain lossless if I now ASSIGN my scanner profile to it? 


I know that you loose quality if you CONVERT an image to different color profiles. Eg. if you convert an Adobe RGB1998 image into a sRGB, and then back to an Adobe RGB1998, then you won't have the same quality. But how is it if you assign a color profile to an image that has the wrong profile embedded?


Any help or opinion? 

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Hi voba,

Welcome to the forums.


If you only Assign a different profile your image should remain lossless as its not converting the image to another. You can also use the Soft Proof adjustment to preview your image with a different colour profile. Any adjustments you make are then based off the soft proof, however you can turn off this layer. Your adjustments will then show using the assigned profile.

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Hi Lee D,


I've just realized your response. (I might have forgotten to activate email notification somewhere)


Thank you very much for feedback! That helps!

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as you can see from the discussion it is not 1000% accurate, but should get you started well  :)

In addition to the complexities of color management, I am trying to wrap my head around the concept of "1000% accurate."  :huh:  :P


But more seriously, I think your intro article is very well done. Kudos! 

Affinity Photo 1.7.3, Affinity Designer 1.7.3, Affinity Publisher 1.7.3; macOS High Sierra 10.13.6 iMac (27-inch, Late 2012); 2.9GHz i5 CPU; NVIDIA GeForce GTX 660M; 8GB RAM
Affinity Photo & Affinity Designer for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 13.1.2

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