Experiments with structure-aware, error diffusion dithering algorithms, and other ways to improve beyond Floyd-Steinberg.

Agent skill (SKILL.md) that maximizes document quality and readability over fax — converts a PDF to a 1-bit CCITT-G4 PDF/TIFF that arrives LEGIBLE after Group-3 transmission, with 17 halftone methods and a multi-up comparison preview. For Claude and OpenAI Codex.

Generate halftone stego images and extract payloads from them.

Dithering with Pascal Cellular Automata as probabilistic rules

Conversão de imagens para tons binários preservando a percepção visual através de difusão de erro. Inclui exemplos em RGB e grayscale com Pillow, NumPy e Matplotlib.

Frame-by-frame video dithering (Floyd-Steinberg, Atkinson, Jarvis-Judice-Ninke, ordered, random) with GIF export