cthumb allows you to create Web albums of digital pictures with thumbnails, captions, and several different views of the collection, including (optionally) several languages and resolutions. An album is composed of a series of pages, each composed of a collection of pictures. You can have several annotations per picture, and can customize almost everything in the way the albums look on the screen.
Photo Collection is a Web-based picture organizer. Pictures are indexed in a relational database (currently MySQL), and can be organized in hierachical categories. Each picture has a thumbnail and can have a name. It is written in PHP on the Web side, and there is a Perl client for database administration.
PicBook automatically produces a photo album in HTML format of your scanned images or photographs. It come with automatic image processing, slideshow, transition effects, and other nifty features. It is easy to customise with its configuration file and HTML-templates. PicBook is a Bourne shell script and therefore should run on any Unix or Linux system. It requires the standard grep and awk commands, which should be available on most systems. Additionally, it needs the "convert" and "identify" commands from the ImageMagick package to handle images.
MRML for KDE is a KDE MRML client which offers integration of content-based queries into Konqueror/KDE. It consists of a KPart (which could be embedded into Konqueror for example) and a kio-slave for communication with the MRML server. You can right-click on an image and choose "Search for similar images..." in the context-menu, which will perform a query on a server and present you a thumbnail view of the results. You can also refine queries by giving relevance feedback.
Historical Event Markup and Linking Project (Heml) provides an XML schema for historical events and a Java Web app which transforms conforming documents into hyperlinked timelines, maps and tables. It aims to provide a most information-rich interchange format for historical data, and thus add a historical component to the growing movement for a 'Semantic Web.'
Gimp Gallery is a program to create static HTML Web galleries from a directory of images. It is a gimp plugin that offers both batch and interactive modes. In the interactive mode, it will display each picture, allowing you to rotate/crop/filter/caption/etc. images before including them in the gallery, leaving your originals untouched. Templating is done via a custom Perl function, allowing you full control over the produced HTML.
AutoScrapbook helps automate the creation and maintenance of an online photo gallery. It creates the thumbnails and Web pages for you by asking you for descriptions of the pictures. It works best when run under Linux and within X (for picture viewing), but you could use it through only a terminal and a separate browser if necessary. It can optionally allow you to delete, rename, and rotate images during the description process. It can also use the programs exif, exiftags, and/or jhead to access EXIF data from the images and/or store descriptions within the JPEG header. Note that this program creates a static Web site around existing images, using the existing directory structure as the heirarchy for the Web site.