By this plug-in you can convert any image into a gray scaled outlined image.
The Plugin Site
A collection of free plugins for performing useful photo manipulations & effects.
Image Skill Magic Enhancer Lite is an image or photo enhancing plug-in...
IrfanView is a very fast, small, compact and innovative FREEWARE graphic viewer.
P2Stego uses the latest advances in Steganography to secure your data.
It enables you to hide a secret message inside another larger message.