Using the digital darkroom to perfect underwater images, this guide is loaded with tips on how to finesse, fine-tune, retouch, and enhance underwater film scans and digital images with Adobe Photoshop. This comprehensive look at the required setup for a digital darkroom outlines the necessary hardware, monitor calibration, and room lighting, in addition to providing a survey of the top editing tools and descriptions of the most tried-and-true correction techniques. Step-by-step instructions explain how to group underwater images for editing; approach corrections for images that require a multi-step enhancement process; and choose the right output options for printed images, video, slide shows, and Web viewing.