source is 750x750 pixels limit
result is a 4x upscale (3000x3000px)
one click solution.
good for portraits etc. (sometimes impressive, depends)
close to Gigapixels quality
No need to settle for low-resolution images anymore. With Zyro's AI Image Upscaler, you can enhance your photos in a matter of minutes. Try it for yourself.
zyro.com
View attachment 153044
Tested it on photos of a group of people, that´s the tough one since it has to upscale such tiny features on many faces, not sure if it also uses same face refinement algorithm as
Topaz, the problem is when the faces has for instance shadows under their eyes, the upscaler can not calculate the true softness that is need with shadows on a face, it oftens sharpen it and the faces get´s uggly artifacts, sometimes looking like monsters.
So...well, for free perhaps, but I actually think a comparison with an image I did, using the upscale filter dcci2x in kritas Gmic filter did a better job of maintaining detail, it doesn´t smooth out the faces, so too much noise perhaps, but it maintains the look of the face more accurate, while this online tool smooths out most detail, to a point where the faces are not looking the same.
There´s Still not Super Awesome AI tool or image enhancer that does that any good, it needs better algorithms and " understand" what is face shadows and how to deal with them, and where eyes and mouth start etc.
Topazface refinement sort of hacks this by replacing eyes with god knows which image library it has for it´s disposal, sometimes it looks good, but the images replaced are not accurate in terms of following exactly what a person is lookin at, or exactly conforming to how the original lips looked like.
Sample of one face such as above is much easier to get a cleaner image on, so a small picture of one individual, fine, a small picture of a group of people, and it´s not gonna be fantastic.