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 3.0 or higher installed on your computer. If you don't have it installed yet, click here to download Filter Forge
This is a dynamic, high pass, gamma adjustment filter. It can be useful for 'bleaching' an image, toning it, or in some cases, making things pop a bit.
Craig Kraellin Walters high pass gamma dynamic toning tone contrast sharpen radius key