I've been working on this tool again from time to time and I just added billinear filter. Using it alongside with some sharpening filter I was able to improve a low resolution picture.<p>There's other algorithms that I still want to implement and maybe refactor the UI a bit, but overall I'm quite happy with my toy editor.
I found this neat website with this cool algorithm to erase pieces of a image called darn (darn it) and I just implemented that on my editor as well.<p><a href="https://wordsandbuttons.online/image_darning.html" rel="nofollow">https://wordsandbuttons.online/image_darning.html</a>