A simple image-to-bitmap converter made in python. Several types of dithering are included to make images usable in color-restrained displays such as mono color TFT or E-Paper displays.
This was a quick weekend project to learn about error diffusion dithering and actually making a usable piece of software. This is by no means a perfect program and has its list of issues, but for about 12-15 hours of work I'm happy with it. While the software is limited in the dithering that it allows, ditherer.py has the capabilities to run almost any linear or error diffusion dithering (Floyd-Steinberg and Sierra are included).
The code is likely not as optimized as it could be, but I do not think I will be updating it further as it's in a place I'm currently happy with. In the future I'll be using either C/C++ or Rust for image processing, as Python is horribly inefficient for this kind of stuff.
In use:
Source image:
Bayer dithering applied:
Sierra dithering applied:
Inversion and Halftone dithering applied:
