gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.
GPX viewer and analyzer
GPXSee is a GPS log file viewer and analyzer that supports GPX, TCX, KML, FIT, IGC, NMEA and OziExplorer files.
JavaScript-Based Molecular Viewer From Jmol
JSmol is the extension of the Java-based molecular visualization applet Jmol (jmol.sourceforge.net) as an HTML5 JavaScript-only web app. It can be used in conjunction with the Java applet to provide an alternative to Java when the platform does not support that (iPhone/iPad) or does not support applets (Android). Used in conjunction with the Jmol JavaScript Object (http://wiki.jmol.org/index.php/Jmol_Javascript_Object), JSmol seamlessly offers alternatives to Java on these non-Applet platforms. JSmol can read all the files that Jmol reads. You can do all the scripting that Jmol does. You can create all the buttons and links and such that you are used to creating for Jmol. All of the rendering capability of the Jmol applet is there. JSmol has both a console and a popup menu. JSmol is integrated fully with JSME and JSpecView. A "lite" version of JSmol provides minimal functionality (balls and sticks only) for extremely small-bandwith apps. Released 1/12/2013
PDFView is a simple, yet powerful, Mac Os X PDF viewer, with advanced integration with LaTeX.
Piwigo is a photo gallery software for the web. It comes with powerful features for publishing your photos and smart browsing capabilities such as categories, tags, or chronology. Extensions make Piwigo easily customizable.
Ultimate Webshots Converter is a Webshots pictures converter. It is able to show and save into JPEG files the pictures contained in the following files : WBC, WBZ, WB1 and WBD.
Full featured photo collection PHP script - Light, fast and easy to install.
Bilding -- view and manage a local picture-gallery through your web-browser.
darknocK detects edges in images. It is using Artificial Neural Networks to enchance the results of standard algorithms.
Mig is designed to be a simple but flexible program that enables users to manage online photo galleries.