Perspec 1.0: A Haskell-Powered Desktop App for Fixing Perspective in Document Photos
Perspec 1.0 is a desktop application that automatically straightens the perspective distortion in photos of documents and receipts, released after nine years of development by developer Adrian Sieber. Instead of the edge-detection method most mobile scanner apps use, Perspec segments the photo into document and background regions and then extracts the four corner points directly. Users can manually adjust the detected boundary whenever the automatic detection misses. What Perspec 1.0 Does Developer Adrian Sieber has released version 1.0 of Perspec, a desktop application that straightens the perspective distortion in photos of documents and receipts. Perspec runs as a standalone desktop tool rather than a mobile app, and it lets users manually adjust the detected document boundary whenever the automatic detection gets it wrong. A Different Detection Approach Most mobile scanning apps rely on edge detection: they scan the image for straight lines and infer the document's bounda...