This is one of over 4598 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
Also known as Erode / Dilate, this filter applies a circular offset and blends the result. Either lighter (Maximum) or darker (Minimum) colors remain.
maximum minimum maximize minimize round circle circular squint expand contract lighter lighten darker darken offset erode dilate lens blur uber zev