Correcting Gamut for a target ICC profile

[Paul Creedy]

I've downloaded the ICC profiles from a photographic lab printer that I wish to use, loaded it into Affinity 2 photo and added a soft proof layer for that ICC profile

The Gamut Check option shows the parts of the image and colours that won't be printed or converted to a closer colour.

I'd like to try and get my photograph as close to perfect as possible without any colour substitution by the printer so I can see what the final result should like like from within Affinity.

• The original image was photographed on the camera in sRGB
• I've loaded the ICC profile into Affinity
• I've added a soft proof adjustment layer and selected the ICC profile from the Photo Lab

What I can't work out, or find instructions on the Internet for is how within Affinity to make the necessary adjustments to the image so that there is minimum Gamut colours.

 

[walt.farrell]

Welcome to the Serif Affinity forums.

Perhaps this old tutorial will help. If not, there are others you can find on YouTube by searching for soft proofing in affinity photo

https://player.vimeo.com/video/152413642

[Paul Creedy]

Thank you for that example, and the welcome.

The adjustments I make based on that video and the LensCraft one I've just found make my photos look absolutely terribly washed out and I can't seem to pull it back to anything that looks reasonable without effecting the gamut again.

The examples in the video don't seem to require much adjustment compared to mine.  Maybe there is a reason that mine are just so far off that there's something else going on.  The grey gamut is pretty much most of the photograph not just a small part off it.

I've very new to affinity, so at the moment I've almost no clue to what I'm doing to be honest.

Paul

[walt.farrell]

If you wanted to share one of your images someone might have some suggestions for you.

[Paul Creedy]

Thanks.  I may do that soon.

I've think I've found 'something', in that I've downloaded the ICC from a different lab and the amount of correction needed is far less just by using the ICC supplied by a different lab, so their own printing process/ICC is part of the problem, but that doesn't help when I want to use that lab.

I'll see if I can share some samples tomorrow.

Thanks

[Paul Creedy]

Progress - of sorts.

Turns out the ICC profile for the printed product provided by the lab is in the CMYK colour space not RGB.  They have a either RGB or CMYK ICC profiles for different printed products.  

If I choose a product where they supply an RGB colour space ICC profile there is only a small gamut adjustment needed to my image.  With the product I actually want to purchase from them, the ICC profile is only available to download in CMYK which is why it's probably way to difficult to correct the gamut.  They have a selection of products that they only supply ICC profiles in the CMYK colour space.

Here is a link to the labs ICC profile page https://www.saal-digital.co.uk/service/professional-zone/softproof-and-icc-profile/

The products I'm trying to be accurate for are the Wall Art ones on this page, which I've now realised are all CMYK https://www.saal-digital.co.uk/service/professional-zone/softproof-and-icc-profile/

That seems to explain the difficulties but not what I can do about getting my images correct because they also say they require images sent to them in RGB.

[Astrogeezer]

Paul, were you able to softproof your images in order to make wall art at Saal Digital?  I'm trying to do that with no success.