Digital Scanner

A device used to optically read a color or black-and-white image (such as a photograph) and convert it to digital form. Typically, a digital scanner determines a particular gray density or color quality for each pixel that an image comprises. With the aid of software, digital scanners can automatically determine the proper color gradation and correction, with only moderate post-scan tweaking by the operator. At one time only capable of black-and-white scans, inexpensive 24-Bit color scanners are relatively inexpensive and widespread. Analog scanners also exist, but are becoming increasingly rare. (See Scanner.)

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