What are Filters?
Filters are great, but used mostly for special effects. Some are used for enhancing pictures, but most distort pictures in one way or another. To apply a filter to an image, go to the Filter menu and choose a filter out of the many sets that come with Photoshop. Each filter has its own options and customization. Here is just an example of some filters than can be used:Original Picture
Final Filter words
Photoshop has several filters. There are companies out there, however, who are known for making Photoshop plug-ins and filters, such as Eye Candy® and Kai's Power Tools®. By going to Help > About Plug-in, you will can see Photoshop's default filters.