HalftoneWebPAL converts images into drawings made from strokes of a consistent width and exports SVG for pen plotting. Its README describes 24 halftoning methods, giving a range of approaches to representing tone without relying on a variable-width pen. The project also documents measured tone behavior, a verification harness, and the machinery shared by its methods. It is a useful resource for comparing image-to-line techniques and studying how software accounts for the marks a plotter can make. The browser app runs through a static server, and the repository provides the setup instructions and source code under GPL-3.0.
Explore HalftoneWebPAL on GitHub.
Image credit: HalftoneWebPAL by Esteban Hufstedler (ehufsted). Screenshot of the browser demo with its built-in procedural Sphere example and parallel hatching.
