How can I fix an out-of-focus blurred photo in Photoshop?
How can I fix this picture? Somebody else took this picture and well he wasn't able to do it very well, and it's blurred.
I have photoshop
Related, if not an exact duplicate: Is it possible to re-focus (recover) an intentionally blurred image?
An intentionally blurred area of an image is going to be much more blurred than a slightly out of focus image, yet might be easier to recover *if* you know what algorithm was use to produce the artificial blur. These are two totally different ways the blur was created.
Possible duplicate of How can slightly blurred photos be improved in post processing?
I don't have Photoshop, but there's an ancient open source project called refocus-it (for iterative refocus), which uses some of the same techniques as Photoshop's new-in-CS6 deblur feature. This should give better results than sharpening with unsharp mask or a high-pass filter. Below, I chose (after some experimentation) a radius of 3.1 and (since the image is very noisy) a noise reduction level of 4000, and 100 iterations, giving this result:
There are a few weird flat artifacts on the faces, and some clear jaggies around the edge of the flag, but this was a really quick pass. Plus, I'd be surprised if the decades-newer technology in Photoshop can't do a better job. In any case, I think it's at least better than the sharpened result overall. If you don't mind spending a lot of time at it, I might try one approach in one layer and the other in a different layer, and selectively (and softly) erase so that you get the best result in each area of the photo.
You can get similar results with the "Sharpen (Richardson-Lucy)" filter in G'MIC. Here's the sample photo run through that with 100 iterations:
And again, some by-hand touch-up and blending will make it look nicer. It's not ideal, but decent for social media sharing and just fine for small prints.
I tried it out in CS6 and it still looked a bit like pushing it through the stained glass filter... :) Not much you can do I suppose, it's started very soft.
I should add that, with the open source project at least, it's _crucial_ to get the sliders right; if the radius isn't correct, you get strong ringing artifacts, and if the noise suppression is too low you get speckles everywhere but too high and you get _additional_ blur rather than sharpness. And as far as I know it's basically trial and error to get those right settings.