ABSTRACT
One of the key factors behind Photoshop's success has been the program's support for plug-in filters. A huge industry of third-party companies has grown in response to the needs of users wanting extra features within Photoshop. This chapter focuses here on those filters which are useful for photographic work. In particular, it has concentrated on those filters that relate to blurring, optical and perspective corrections, plus rendering. Most Photoshop filters provide a preview dialog with slider settings that one can adjust, while some of the more sophisticated plug-ins such as the Lens Correction filter are like mini applications operating within Photoshop. Smart Filters was the solution, the Photoshop team came up with and this feature can be particularly useful when working with some of the blur filters that are discussed in this chapter, as one may very often need the ability to re-edit the blur amount.
