RIG is a web-based JPEG image album viewer, especially useful for digital camera albums; provides automatic image resizing, preview & thumbnail caching, user authentication; composed of a PHP web interface and a C++ thumbnail engine.
KPhotools is a QT and ImLib2 based Web Album (image gallery) generation tool for KDE.
It can: resize images,rotate images, blend logos on images, create web albums with slideshows, take screenshots from you desktop(s). No PHP needed on your server.