Jjpl

It has much more resolution - notice how the holes in the grill are very well defined. Also appears soft in appearance as it has practically no aliasing artifacts left. To me personally the biggest advantage of "super resolution" is not the increased resolution but the removal of aliasing and false colour artifacts, both of which are rampant nowdays as the camera manufacturers have mostly eliminated the anti aliasing filters alltogether. Added resoltution is to me largely just a bonus. You can download a demo version of Photoacute and verify yourself that there is significant increase in resolution. If I have the time I might create a more clear example myself.

But HDR stacking doesn't do much at all to resolution, apart from improving signal to noise ratio. PhotoAcute instead improves resolution (as well as increases number of pixels in the file) and reduces artifacts very significantly. I made a quick test with just three hand held shot raw-images - all viewed at the same enlargement, using nearest neighbour to upsize. I also tried to abuse the Focus Merge mode, simple stacking with different stacking modes (mean/median etc.) as well as HDR and none of them produced anything anywhere near what I'd call super resolution. HDR produced esily worst results while simple stacking the best, but nowhere near what PhotoAcute did. Please see below (and at 100% - maybe outside of the web browser as it might do some scaling).

Combining multiple exposures can be used to increase image resolution, reduce false colour artifacts etc. It would be really nice feature to have especially for combining raw-images. See PhotoAcute.

Deconvolution filter (maybe Richardson-Lucy) with customizeable point spread function (PSF) would be neat.

Thank you and thank for the pointer!

Ah, the percentages indeed do work - it's just not obvious one can use them - maybe a %-unit in addition to the other metrics to the drop down menu, or help bubble? Resizing canvas (or document) (APhoto) by using the w & h does not work though - also this wouldn't be too obvious even if it worked - maybe a help bubble?

It would be nice to be able to resize by a percentage. Also, it would be nice to be able to resize the canvas by using a simple formula (as in PhotoLine, a competing product ;) ).