Experimental mosaic tool

Voronoi Mosaic

An experimental online tool that renders images as Voronoi cell mosaics — organic, cell-like regions instead of square tiles.

Experimental — workable, but not a production product

Voronoi Mosaic workbench: Hokusai's Great Wave rendered as organic Voronoi cells

A different geometry

Voronoi Mosaic partitions the image into cells grown from seed points. Each cell takes the tone of its region, so the image re-emerges as a field of irregular, organic polygons — a stained-glass-like reading of the source picture.

Voronoi and Delaunay — one geometry, two views

The Voronoi diagram and Delaunay triangulation are mathematical duals: they come from the same seed points, and each can be converted into the other. Every Voronoi cell surrounds one Delaunay vertex; every Delaunay triangle corresponds to one Voronoi vertex.

The two tools therefore read the same image through complementary geometry — cells here, triangles in Delaunay Mosaic. If a composition almost works in one, it is always worth checking its dual in the other.

Status and scope

This is an experimental but workable tool for exploring mosaic aesthetics. It is not equivalent to the main production software and does not generate assembly workplans for physical tile work.

Example output

Hokusai's Great Wave rendered as a Voronoi cell mosaic in blues and teals — The Great Wave as a field of Voronoi cells — stained-glass-like polygons grown from seed points.

Sunflower rendered as a Voronoi cell mosaic with seed dots visible in the unfinished area — The same sunflower as its Delaunay counterpart — identical seed points, read as cells instead of triangles.

Voronoi cell outlines drawn over a Delaunay triangle mosaic, showing how the two geometries interlock — Duality made visible: Voronoi cell outlines over a Delaunay mosaic, seed points marked — each cell wraps one vertex.

Tell us about your mosaic project

Software, hardware or a full production solution — describe what you are making and we will point you to the right tool or team.