Seems like you have just used https://vanceai.com/sharpen-ai/. Source: about 1 year ago

If you give a toss about how I managed this, I ran the original image in your post through VanceAI's sharpen / unblurrer tool (because as /u/AllEschse noted, the original image you got from that Reel video was absolutely fucked), then took result Vance spat out and reverse image searched it. Voila! Sauce for your pasta. Source: about 2 years ago

I used AI Image Sharpener and AI Image Enlarger to unblur this image. The results really surprise me. AI technology changes lives! - Source: dev.to / about 2 years ago

Sharping images is one of the most vital photo editing features nowadays. And a sharpened image attracts people's attention much more accessible than a blurred one. As social media entertainment is mainly visually based, deblurring images online instantly and effortlessly has become the trend. Due to the development of AI, unblur images have become ever easy. Compared with traditional Photoshop and manually... Source: about 2 years ago

If the picture is of law quality or scratched try to improve it before colorizing. You can do it using Photoshop or GIMP (HSV contrast, white balance, noise reduction, etc.) or use an online tool. I can recommend You the three following: https://imagecolorizer.com/repair.html, https://www12.lunapic.com/editor/, https://hotpot.ai/restore-picture?s=side-ad. Hard to say which one is better, depends always on picture... Source: about 3 years ago

It's a great idea, I absolutely second this. The only problem is that grandma's photo may be too old and faded, in this case you'll have to use something like Photoglory or ImageColorizer to restore it and probably add some color. Source: about 3 years ago