Least Cost Portrait

A Map Algebra Exploration

Inspired by Dana Tomlin's lecture at KTH (May 11, 2026). This tool translates Map Algebra and cost-distance algorithms into spatial art, treating image brightness as physical friction.
📁 Click to Choose Image
50
60

Instruction: Click on either image to place wavefront seeds (e.g., on the eyes). Use mouse wheel to zoom.

Developed by Ziqi Yang
KTH
Original RGB
Cost Surface (Grayscale)
Rendered Output

Computing Cost Surface...