Does anyone know how to get this effect with Affinity?

[DavidWalker]

[Alfred]

Welcome to the Serif Affinity Forums, David.

Depending on your starting point, you may find that the ‘Posterize’ function is all you need. Please upload your original image if you would like more detailed help.

[Medical Officer Bones]

As far as I can tell, it is NOT an effect. It is drawn, either digitally or on paper (or a combination).

[fde101]

11 hours ago, Medical Officer Bones said:

It is drawn, either digitally or on paper (or a combination).

Agreed, that is what I think I'm seeing too, particularly when looking at the textured washes in the background and the purple shirt when combined with the thick outlines and the pencil-shading on the mask.

More specialized digital artwork programs such as Corel Painter have features that are much more suitable to a task like this than is a photo manipulation program such as Affinity Photo (tracing paper, surface textures, natural media brushes, etc.), but even then this would be much more of a manual effort rather than an automatic effect of some sort.

The "next best" thing might be a carefully tailored "comic book" type filter; there are a few in Filter Forge that might be able to give you something useful if you spend some time playing with it, but I don't think you will find something to match that "effect" quite exactly without putting in some manual effort.

[smadell]

You might get some success using this macro, which I've linked below. It is called "Graphic Novel Effect" and creates a treatment similar to the image you posted. As an example, I downloaded a photo (from Unsplash), desaturated it by 85%, and applied the Graphic Novel macro. I tweaked the settings a bit, but here's the result: