Visual designer and computational artist: writing the software I design with.
tsevis.com
Charis Tsevis is a Greek visual designer and computational artist. For thirty years he has built custom software and developed proprietary algorithms: not to follow trends, but to solve real visual communication problems for real clients, with real budgets and real deadlines.
The work sits in the line of Computer-Assisted Mosaic Tessellation, begun by Ken Knowlton at Bell Labs in 1966: an image rebuilt by algorithm from its structure, its tones and its edges. Algorithmic mosaic is the name for what that line produces today. The code here is the other half of the same practice: the tools I needed and could not buy.
- Computer vision: classical and geometric first (edges, contours, shape detection, tessellation), learned models where they earn their place (open-vocabulary segmentation, matting, depth, local vision-language models).
- Computational geometry: Voronoi and centroidal Voronoi cells, Delaunay meshes, hex grids, circle packing, overlap graphs and graph colouring.
- Colour as a measurable thing: perceptual spaces (Oklab, CIELAB), monotonic ramps, perceptual transparency.
- Vector output: layered, editable SVG that opens clean in production tools.
- Local-first. Offline by default, inference on the machine, no cloud endpoints.
- Deterministic. Pinned models, reproducible output: the same input gives the same picture.
- Structure over summary. A tool should find the seams in an image and hand me the pieces, not describe it.
- Production, not demo. Built for a real workflow with real deliverables.
|
|
|
|
Python · NumPy · SciPy · OpenCV · shapely · scikit-learn · PyTorch · skia-python · FastAPI
TypeScript · React · Vite · Adobe UXP
Local inference · Ollama · llama.cpp · SAM · GroundingDINO · Whisper
Formats · SVG · TIFF · GeoTIFF · PMTiles
Trained at the Scuola Politecnica di Design, Milan, in Gestalt psychology and perceptual theory. Teaching design thinking, colour theory and Gestalt since 1996; ten years of a monthly column on computer history and cyberculture in RAM; more than ten typefaces with the Parachute circle. Talks at Adobe MAX, TEDx Athens and OFFF Barcelona.