How to increase the size of pixel art without blurring the edges?

Question

Python

I don’t know exactly what it is called, but this editor https://www.pixilart.com/draw has a similar functionality when exporting a drawing. If used from the pillow resize() library, then the edges of the stroke in pixel art are smeared.

Answer 1

from PIL import Image

im = Image.open("source.png").convert('RGBA')
im = im.resize((100, 100), resample=Image.NEAREST)
im.save("result.png")

https://stackoverflow.com/a/53172086
source.png

result.png