Most of the ideas in LIU are inspired from general image processing, computer vision and graphics books, and from commercial packages like PhotoShop, PhotoVision, XV, Image Magick, GIMP, etc. Programs can be run either individually or invoked from the main menu. They can start as applications or applets. While executed as an applet, it will not be able to save the results due to Java's security reasons and the "data" subprogram will not function properly. Reading multiple local and URL images is supported.