Foveon Lab

Foveon Lab is a local tool that previews Sigma Photo Pro (SPP) presets on Sigma SD1 and SD15 X3F raw photo files side by side in a web browser. It loads embedded JPEGs from X3F files and applies SPP preset emulations for easy comparison without requiring SPP software. Additional features include exporting previews, saving presets, and AI-assisted preset selection. It runs as a single Go binary locally, supporting photo scanning, preset management, and calibration to measure SPP behavior.