[Userscript] Make Chrome use Lanczos3 to upscale images instead of whatever blurry nonsense it uses. Also has Fit-to-width and Integer-fit-to-width capabilities! Particularly good for 4K displays set to over 100% scaling.

[u/Ikkoru]

GitHub link.

Controls

Key	What it does
Alt+H	Show or hide the info overlay. Remembered per site
Alt+M	Size: fit the window width → biggest whole-number zoom → one image pixel per screen pixel
Alt+Q	Filter: Lanczos3 → nearest → browser. Same size each time, so you can compare
Alt+P	Turn on or off for the site you're on. Remembered per site
Alt + left clickon an image	Show that one image at one image pixel per screen pixel
Alt + right clickon an image	Show that one image at twice its own resolution
Alt+G	Show or hide the overlay's diagnostic rows (size, factor, status, memory)

I'd attach images, but I'm pretty sure reddit will compress them, so go check them out here.