Voronoi Diagram Generator
Create a raster Voronoi mosaic or stippling effect with adjustable sites, relaxation, edges, colors, and PNG download.
Build a raster Voronoi diagram from an image or generated sites. Adjust site count, Lloyd relaxation, edges, color mode, and stippling, then download the rendered result as PNG.
How to Use Voronoi Diagram Generator
- Start with the canvas or an optional image: Start with the built-in canvas, or upload one of the optional formats listed by the tool (PNG, JPG, WebP (optional)).
- Adjust settings and process: Adjust the available controls, then run the selected image processing workflow in your browser.
- Review and download: Review the result, then download it in one of the formats offered by this tool.
Frequently asked questions
What is a Voronoi diagram?
A Voronoi diagram partitions the plane into cells based on distance to a set of seed points. Every point belongs to the cell of its nearest seed.
What is Lloyd relaxation?
Lloyd's algorithm iteratively moves each seed to its cell's centroid, converging toward a centroidal Voronoi tessellation with uniformly sized, well-shaped cells. Used for artistic stippling.
What is stippling?
Stippling approximates an image with dots. Pixlane uses image-weighted Lloyd relaxation so sites move toward darker regions, then varies dot size using each cell's average darkness.