album is a free HTML/XHTML photo album and gallery generator that supports themes/skins. You can choose different themes or write your own to get different layouts and styles. It creates all your thumbnails (including directory thumbnails) and descends into directories so you can organize your photos. See the home page for more examples. album is also multi-lingual, with many languages being added all the time. N.B.: The purchase link is provided for donations; the software does not cost anything.
LinPHA is an easy-to-use, multilingual, flexible photo/image archive/album/gallery written in PHP. It uses an SQL database (MySQL/PostgreSQL/SQLite) to store information about your pictures. It comes with an HTML-based installer, so you don't need experience in setting up SQL databases. Thumbnails are created as needed and stored in the SQL DB. It features complete user management, top ten statistics, hidden albums, different themes, slideshow, filemanager, uploader, watermarks, benchmark, printing, and more.
phpThumb() is a flexible thumbnail generator. The output can be larger or smaller than the source, an entire image or cropped section, with or without configurable borders and/or a background color. The source can be a local file, a remote file, or a database source. GIF reading is supported with or without GD support. BMP reading is supported with or without ImageMagick. Any ImageMagick-supported format can be used as a source if ImageMagick is available. Watermarking, unsharp mask sharpening, and caching are available. EXIF thumbnails can be extracted and/or used for large-source support.
Easy PHP Thumbnail Class can be used to manipulate images and generate thumbnails. It can load images from files and generate thumbnails that can be saved to files or be generated as the current script output. The class can also perform other image manipulation functions such as adding shadows, clipping rounded corners, filters, bilineair image deformations, and more. Over 45 image manipulation functions are available.
The JGenerator is a Web server production application that can dynamically combine text, graphics, and sound to build rich Flash content. It is a free alternative to and analog of Macromedia Generator. It supports most of the Macromedia Generator features, uses the same data format and the same set of commands, and emulates its behavior.
UNG (UNG’s Not Gallery) is an image gallery script for control freaks, tweakers, and other power users. It browses subdirectories (uploaded manually via FTP, SCP, or another protocol) of a specified location and creates a hierarchy of categories and pictures. It automatically creates thumbnails for images that don’t have them already and has an optional comment system so people can discuss posted pictures.
libAfterImage is an image import, storage, manipulation, and output library for X. It features support for antialiased, TrueTypei, and X text, a 128-bit internal graphics engine, in-memory RLE image compression, high quality image scaling/flipping/blending, multipoint linear gradients, superior quality image output on X drawables, and much more.