Hoping to recreate the same effect in Krita as Photoshop’s Palette Knife filter, and apply it to photos - I see the topic on creating a brush that mimics a palette knife, but I really just want a quick way to apply the palette knife look to an existing photo.
I think this is difficult to achieve with Krita. But you can try using the filter package G’MIC-Qt, which you can call up in Krita under ‘‘Filter’’ >> ‘‘Start G’MIC-Qt’’. If you try the filters it offers under ‘‘Artistic’’ in G’MIC, you probably have the best chance of achieving this effect, but there is no guarantee that it is able to do it.
Perhaps software such as the free “FotoSketcher” would be more suitable for you, as it serves the sole purpose of turning photos into pictures that look like “works of art” and thus enable people who are untalented or too comfortable to paint pictures themselves to feel like “artists”. A so-called “one-trick tool”, it can only do one thing, but it does it really well. I know that the software offers a wide variety of filters to distort images and is constantly being developed. I can’t say it can do what you’re looking for, as I prefer to paint myself rather than cheat, but with a bit of luck you might find something there that probably doesn’t exist in Krita if G’MIC doesn’t allow it.
Furthermore, GIMP is more of a candidate for such purposes, as with Krita there are many users who have written extensions for it, including tons of such filters for alienating photos, so if G’MIC doesn’t have it and “FotoSketcher” shouldn’t have it, GIMP is probably the most likely of all possibilities, but it has a steep learning curve at the beginning.
By the way, I don’t know where you get the idea of using Krita as an alternative to photo manipulation a la Photoshop, because Krita was never intended for that and is not designed for that, even if the programs overlap in many respects, since they edit images at pixel level, i.e. raster graphics. But I’m afraid you may have seen a video or read a report comparing Krita to Photoshop and misrepresenting it as a replacement for Photoshop for the umpteenth time. It’s like comparing potatoes to apples, nonsense. A program like Photoshop whose main focus is on image manipulation, but Krita is a program for painting, drawing and animating, right from the start, but many of these would-be reviewers have apparently not even taken a look at Krita’s well written manual (worth reading!), where it is pointed out in the very first paragraph that Krita is not and never wants to be a Photoshop clone:
Excellent suggestion, and in return, I offer the following:
"As human beings, we suffer from an innate tendency to jump to conclusions, to judge people too quickly, and to pronounce them failures or heroes without due consideration. ~ King Charles