Search the Community

The softproof adjustment gives inconsistent results. I made a test file containing all possible colors (8 bit color channels) and assigned ROMRGB profile. then added a softproof adjustment to check how lower gamut profiles look. for CMYK and GREY, the reduced gamut is shown. for RGB profiles like sRGB or DCI-P3, incorrect preview is shown. The rendering does not change (checked by merge visible and blend mode difference). If enabling gamut check, out of gamut areas are (probably) correctly shown in grey, so the softproof knows what needs to be corrected. The documentation says nothing about any restrictions of softproof wrt color formats, or filters color profiles to CMYK. So I assume it should work in any color profile.

My work flow is this: RAW image -> DxO PhotoLab 7 with ProPhoto color profile -> export to TIFF with ProPhoto color profile -> import to Affinity Photo with ProPhoto color profile -> export to JPG with sRGB IEC61966-2.1 profile -> view with IrfanView or MS Photo. There is a small but noticeable color shift when I compare the image in Affinity with the image in IrfanView. If I save the JPG using the ProPhoto color profile and then view with IrfanView, the images look identical. My assumption is that the sRGB color space cannot display all the colors in the ProPhoto color space. Fine. But let's keep in mind that neither can my monitor. I would think that a color in the ProPhoto color space outside of my monitor's color space would be converted to my monitor's color space, which shouldn't be much different than the result of converting it to sRGB. I wouldn't think the image colors would appear different. Of course, there is intent. My working color space is RGB/16, ProPhoto Perceptual with no Black Point compensation. When I export to a JPG with an embedded sRGB IEC61966-2.1 profile, I'm not seeing any place to declare the intent. In any case, I thought I would enable soft proofing using the sRGB IEC61966-2.1 profile—then I could at least preview what would happen. I added a Soft Proof adjustment with the sRGB IEC61966-2.1 profile and Perceptual intent. The image didn't change. If I enable the Gamut Check, it shows that there are gamut problems, but that's about all it does. I tried various other intents as well—the image remains unchanged. To preview the color shift from ProPhoto to sRGB, I seem to have to convert the document's color profile. Do I misunderstand the Soft Proof adjustment?

I use Adobe RGB as my working colour space, it works well in conjunction with my Adobe RGB capable monitor. If I want to share an image then I use Document | Convert... and pick sRGB IEC61966-2.1. I don't often see much of a change in the image. So far so simple. Today though converting the profile of a panorama in this way makes the image much more contrasty. However, if I simulate the conversion from Adobe RGB to sRGB by adding a soft proof adjustment layer with a proof profile of sRGB IEC61966-2.1 then the image does not become more contrasty. Am I wrong to expect a soft proof layer set to sRGB to have the same effect on screen as using Document | Convert... to sRGB? Any wisdom much appreciated. EDITED TO ADD: It doesn't matter what rendering intent I set for the conversion and the soft proof layer.

Hello! When I change my document ICC color profile from RGB to any CMYK, split color does not work as expected anymore. In rgb, the colors are clearly influenced by both slides. However when converting the document to CMYK, the whole image gets darker and cannot be changed by the sliders anymore. The only option there is having both sliders on zero: no change or one slider a little bit: darker image. I tried this with an image from the internet and there I did not have the issue, so I included the project and a video of the problem. I had this problem with generic CMYK ICC profile, however there is a specific color profile which I would like to use which is also attached. A different problem is when using this attached color profile, there is quite a big difference in soft proof and the result of converting the document. MacOS 13.4 (22F62), M1 Macbook, Affinity Photo 2.0.4 Thanks for reading, I hope someone is able to help. Schermopname 2023-05-15 om 11.48.24.mov test.afphoto ISOcoated_v2_300_eci.icc

Hello! I found on the SaalDigital website the advice not to use their ICC-profiles for softproofing, because simulation of the colour of the paper isn't possible. Here is the link to the according site: https://www.saal-digital.de/support/article/softproof-in-affinity-photo/#sb (Maybee you have to sroll to the top of the site.) Will this be supported in future versions? Best regards, Paul

APh V2 trial on Windows 10. All ICC profiles set correctly in Windows Color Management. Issue: Converting sRGB TIFF to CMYK ISO coated V2 gives wrong result (using absolute colorimetric rendering intent - not yet tested other conversons). Correct conversion is shown in ColorThink Pro (a scientific color management analyzing software). Is there something I am missing or is this just a bug in V2 (and V1)? Testrender_export_Affinity_Photo.tiff

Photo 1.10.5 on Windows. Softproofing a document with absolute colorimetric rendering intent gives wrong results. I have a cmyk document I softproof for iso newspaper output. The ISO newspaper ICC is known to have a strong yellowish, orange whitepoint. But the softproof in APhoto does not shows this in whites. And the color itself gets a severe hue and lumance shift, which should not be there. Cross checked with APublisher; it's wrong there as well. Cross checked with Krita. There everything works as expected. User error or bug? cmyk.afphoto ISOnewspaper26v4.icc

APh V2 Trial on Windows 10 64 bit: Softproof adjustment with absolute colorimetric intent does not respect white point of chosen ICC profile. See attached document for details and this thread where all this has been discussed for Verson 1 of APh already. Softproof_Bug.afphoto