Removing almost all the color from a photo but leaving one or two objects in vivid tones, called spot color, is an effective artistic device that’s long been popular in the print industry. (In the commercial printing business, “spot color” means something else—it refers to the use of special inks for a particular color in a multicolor image.) Figure 10-3 shows an example. To practice the maneuvers you’re about to learn, download the file caboose.jpg from this book’s Missing CD page at www.missingmanuals.com.