Like a digital camera, the retina does basic optical processing like edge detection and enhancement and color separation.

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The latest facelift (unveiled last night with help from Grammy-award winning singer Alicia Keys) comes in the form of a cutting-edge LED lighting system, provided by Philips Color Kinetics (PCK).

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Each new printer uses the FastFront feature for easy changing of ink and paper from the front of the printer and can also produce beautiful, borderless edge-to-edge 4 x 6-inch photos in approximately 44 seconds6 at a maximum color resolution of 4800 x 2400 dpi7.

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If it's any consolation, the trackball on the right edge has been replaced with an optical touchpad and there are now red and black color options.

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Its exceptionally sophisticated 10-bit video digital signal processing provides for adaptive de-interlacing of both SD and HD sources, edge enhancement without ringing, and uniquely adaptive noise reduction, as well as extensive color and grey level calibration.

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