In an effort to restore them as much as I could, I used a combination of waifu2x ("Single-Image Super-Resolution for Anime-Style Art using Deep Convolutional Neural Networks"), Clip Studio Paint resize/cleanup tools, and manual cleanup done by hand. Unfortunately, the red text on the title page was a lost cause. If anyone can decipher solid red rectangles please contact me lol. Source: about 1 year ago

Maybe this would help. There's also an app version of it. Source: over 1 year ago

I would recommend putting it through an upscaler beforehand, it seems a bit small. Source: over 1 year ago

Http://waifu2x.udp.jp/index.html found this image upscaler from https://www.reddit.com/r/FireEmblemHeroes/comments/a51f0k/i_turned_yusuke_kozakis_artwork_into_a_high/?st=JPIZKYIB&sh=f12f76fe a while ago, perhaps that would be the closest if IS doesn't release anything. Source: over 1 year ago

You can make it bigger for print by using by using an Japanese AI image enlarging tool. Source: over 1 year ago

Too complicated, just use http://nuftu.com and get a "real" NFT from your artwork in like 5 minutes. - Source: Hacker News / over 2 years ago

Slightly off topic, but I built a web service to create NFTs on the Ethereum blockchain without the need to set up a wallet and buy Ether beforehand. You pay the gas fee on in USD, the service takes care of everything: https://nuftu.com. - Source: Hacker News / almost 3 years ago

Here I need to chime in: I very recently created a website that let's you create your own NFT with only a couple of clicks (https://nuftu.com). Source: almost 3 years ago

Thanks for x-posting! Check out the website on https://nuftu.com. Source: almost 3 years ago

The main difference to the other 100 marketplaces is ... That Nuftu is not a marketplace. Source: almost 3 years ago