Java programming hello i am doing face recognition program using portable grey map. i dont have problem in getting the output.i am getting the output when i give pgm image as input. my problem is to convert jpeg image that i get from my mobile to pgm and also crop it and resize it to 80 * 80 . can anyone help me thanks

There are 2000 jpeg libraries in Java out there, easily searchable on search engines, sourceforge, maybe versiontracker, and secondly, you're asking for (what should be application-specific -output-; why would you hobble input) crop/resize without hinting at your algorithm? First, get a real programmer....

Java project for college applications? Gee, how about one to take a personality inventory (the INTJ type; only padded out) including areas of interest and make people little public/private spot codes (2D barcodes, like the ones in Japanese magazines) to indicate their type. The camera in a cellphone with J2ME can read the codes, maybe.... The cool part is that they're coupled with either P3P in wikis or java applets that help communicate with that person if you're an type that would otherwise take bothersome human care and preface to communicate.
There are all kinds of little systems you can build to thwart the draggy bits of Alzheimers' etc. with various little expert systems, that come up when you read a science journal (Nature, Science, Dr. Dobb's Journal, JAMA, JVNA....
You could invent something other than big-headed anime characters to add a personal visual reference to GUIs; emobots were cool, but maybe you can have a **** Cheney's Hands IM environment if it doesn't already exist (see also: Galludet University (for deaf students) stuff.)