System Requirements
You will need Sun's Java 2 (or 5), or a Java 2 which includes Sun's JPEG routines, "com.sun.image.codec.jpeg". It is relatively easy to download, and instructions are given below. Apart from that, your system limits only the time taken to "Unshake" an image, and the size of image which can be processed: On a Gigahertz PC with 256 MByte of RAM, it should take less than 5 seconds for a 256 by 256 pixel image, and 4 times that for a 512 by 512 image. On a 300 Megahertz PC, it takes about 3 times as long, and on my little 75 Megahertz PC it used to take nearly 15 minutes for a 512 by 512 pixel image!
RAM is also a consideration: My little PC only had 64 MByte of RAM, so it slowed down a lot if I did anything else with it while it was processing a 512 by 512 pixel image.
So the conclusion is: If you can run Java 2, you can run Unshake, though if you have a small or slow computer, you will have to be patient. A newly bought PC should have no trouble at all running the code.
Unshake is really rad. But like all truely rad pieces of code it's got the world's worst UI.
