What services are there to increase the resolution of a photo?

Question

Image processing

There is a photo 640x360. I want to increase to 4K on the smaller side. Quality requirements are not very strict, but simple stretching is not good either.

Have we come up with services in our time where you could feed a small photo to the machine, it would, having stretched it with its neurobrains, stretched it and added pixels where necessary?

Answer 1

highly praised - https://imglarger.com/

Answer 2

Of course, there are such services, and all the latest developments in this direction are built on neurons. Try to start with a search engine for photo resolution quality enlarge upscale online for example. Some are pretty cool, in general, as you put it, they finish drawing pixels. I especially like the work of Denis Shiryaev and his neural network on processing old, one might even say ancient, videos up to 4k.