- Perspec 1.0 is a desktop app for correcting image perspective, especially for documents and receipts, now available on macOS, Windows, and Linux.
- The app uses a corner detection algorithm that segments photos into document and background, avoiding issues with curved or wrinkled edges common in other apps.
- It offers advanced binarization options, including 'Save BW Smooth' for anti-aliased black-and-white output, and handles shadows without complex local thresholding.
- Key updates in 1.0 include automatic corner detection, drag-and-drop support, improved selection UI, and EXIF rotation handling for PNGs.
- Perspec is built with Haskell and a custom C library (FlatCV) for image processing, emphasizing speed and accuracy over mobile app conveniences.
- The developer plans future features like fixed output sizes (A4/US Letter) and QR code detection for metadata automation.