Effectbank is a program that allows you to add effects to a photograph,easily, with a few clicks.
Some of the effects are: gray scales, histograms, blur effect, water effect, color conversion, mosaic, distortion, shading, morphological effects, dithering, color maps, gradients, threshold, and several more.
You can apply multiple effects on a photo, and you can undo the changes, so you can experiment and play until you get funny results in personal image.
It has several textures to choose from, divided into the following categories: Basic, analytical, synthetic, clouds, Voronoi, etc.
Effectbank 0.8.5.1 is the latest version, updated in January 2010, this software can be downloaded for free.
Effectbank Free Download