You can use filters to apply special effects to images or to perform common image editing tasks, such as sharpening photos. This section provides an overview of Adobe Photoshop CS3 filters and how to apply them to images. Complete information on using some filters is available in other sections. Search Adobe Help or check the index for information on the Sharpening, Blurring, Lens Correction, Lens Blur, Noise Reduction, Liquify, and Vanishing Point filters.