To optimize your site's load time you should always code in the dimensions of all images being loaded. We wrote this to simulate a function in PHP that does pretty much the same thing. It's a simple class to return vital stats on an image. This was created to simulate a PHP function. Just pass it the path to your image resource and it gives you back the heght and width, nothing special, just kind of useful.
The MBH Image Servlet generates images on the fly. It includes a pluggable encoder enabling the generation of different types of images such as gif, jpg, png. Also, the MBH Image Servlet can easily be extended to generate any image.
PhotoServlet is a distributed system for indexing and viewing images. The architecture of the photoservlet allows you to distribute pieces of the photo album on different machines and/or processes. Main features include: Add an image, Simple and extensive image searching, Category view support, Set viewing style, and more. This program requires PostgreSQL, DbConnectionBroker - JDBC connection pooler, com.oreilly.servlet - servlet object that allows uploading, and spy.jar.
This Servlet allows you to quick publish your pictures (.gif , .jpg and .pgn files) online. Servlet simply displays all graphical files within the given directory.