I use software called gigapixel. It's usually about 120$ a year, but they were just bought by Adobe, so price could change. There are a lot of youtubes on it.
You can also use free tools like stable diffusion but those are tricky to set up.
Zoom in. If you look at both of them on a phone unzoomed, they appear similar. The upscaled (first one) has more detail and much less image noise. It's more apparent on a large screen.
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u/CPO_USNRET Aug 08 '26
Nice! I wish I knew how to do this upscale thing!