Document Edge Detection

Document Edge Detection — Find Documents in Any Photo

ScanKit's edge-detection engine finds document boundaries even on curved pages, folds, and busy backgrounds — then straightens the perspective for a clean result. It's the core technology behind every ScanKit product.

Why ScanKit

The differentiator behind every scan

Handles curved pages

Book spines and curled edges are detected and flattened — not just corner-tracked like basic scanners.

Works on busy backgrounds

Finds the document among clutter, shadows, and uneven lighting.

Powering API, SDK & no-code

The same engine runs everywhere: REST API, browser SDK, and instant scanners.

Want to build with it? Start with the API playground.

Try the API Playground