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13.9. ColorSync

As you may have read elsewhere in this book—or discovered through painful experience —computers aren't great with color. Each device you use to create and print digital images "sees" color a little bit differently, which explains why the deep amber captured by your scanner may be rendered as chalky brown on your monitor, yet come out as a fiery orange on your Epson inkjet printer. Since every gadget defines and renders color in its own way, colors are often inconsistent as a print job moves from design to proof to press.

ColorSync attempts to sort out this mess, serving as a translator between all the different pieces of hardware in your workflow. For this to work, each device (scanner, monitor, printer, digital camera, copier, proofer, and so on) has to be calibrated with a unique ColorSync profile—a file that tells your Mac exactly how your particular monitor (or scanner, or printer, or digital camera) defines colors. Armed with the knowledge contained in the profiles, the ColorSync software can make on-the-fly color corrections, compensating for the various quirks of the different devices, and even the different kinds of paper they print on.


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