Advanced Filter Effects: ConvolutionFilter

[kml_flashembed movie="experiments/convolution_filter.swf" height="510" width="577" /]

Thanks to the Adobe Developer Library for the example:

Convolution Filter:Convolution filtering is typically a part of multiple visual effects in most, if not all, pixel-editing applications. This is not surprising because using the filter effectively requires at least a working knowledge of matrices. The transformation capabilities made possible by matrices calculate pixel color values by combining values from adjacent pixels to produce a wide variety of image effects. These effects include, but are not limited to, blurring, sharpening, embossing, edge detection, and
brightness.