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SAMS Teach Yourself Adobe® Photoshop® CS2 in 24 Hours by Kate Binder, Carla Rose

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Pixelate Filters

When one is “pixilated,” according to my dictionary, he or she is intoxicated, but in a charming, bemused, whimsical, pixyish way. Pixelation can be equally whimsical and bemusing, if applied to the right subjects. Misused, it just turns everything into a bunch of dots. Pixelation happens when similarly colored pixels are clumped together to form larger units, which might be square (pixel-shaped), round, or rounded off by anti-aliasing to whatever form they take. It happens, unasked for, if you're printing a picture at too low a resolution. You end up with large pixels forming jagged shapes that look like they were built out of a child's plastic block set.

When controlled, the effect can be quite interesting. Photoshop includes ...

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