plasMatrix
is an easy to use image processing software based on the InstantInputProcessing-Engine (IIPEngine) developed by artelogic running on any Win32 platform (Win2k-Win7 and virtual maschines running one of those). plasMatrix is a sophisticated multi parameter exposure filter, hugely useful for editing photos. It has also build-in image resizing capabilities.
plasMatrix tries to address two main goals, firstly it should be fun to use it, secondly it should be ergonomic. This means that it must be possible to reach a desired result with as less clicks as possible, what is especially relevant when you have to edit more than one image.
Like almost every software from artelogic you can run it without installation, so it is as you call it today portable.
At the moment plasMatrix has reached the beta.2 stage, which means it should be almost error-free, and is available as Freeware with limited functional scope.