This is one of over 4720 effects generated by Filter Forge, a Photoshop plugin that allows you to create your own filters.
To open this filter, you must have Filter Forge 1.0 or higher installed on your computer. If you don't have it installed yet, click here to download Filter Forge
Advanced Pixelator can be used to pixelate images or turn them into mosaics. Some of the options only make sense in combination with other settings. For example using inclining together with a grid may not look right while staggering only really shows with a grid. The pixels can be resized by width and height separately.
pixelate pixelation pixels blocks mosaic lowres