03/04/2002: New pixellate version with minor speed improvements.

A simple pixellate filter, a stepping stone to my forthcoming halftone filter but potentially useful in its own right.

original image pixellate image

The pixellation algorithm is very simple, it takes the median of the hue/saturation over each square and the mean of the luminescence. This produces a nicely graduated luminescence: taking the mean of the hue is prone to error since adjacent hue indices can be radically different colours.

Download the filter and source code (zip file).

This filter is distributed under the GPL and uses code from Donald Graft's excellent Colorize filter.

Back to filter page.

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