Sunday, April 3, 2011

Buying A Scanner


DPI: Dots per inch determines the resolution of printers and scanners.
Optical Resolution: The optical resolution refers to the number of separate readings taken from the original, when compared to the subsequent rise in resolution created by the software interpolation.
Colour Depth: The colour depth refers to the bit depth which is the number of bits used to describe the colour of the pixel. The greater the bit depth, it allows a greater range of colours to be represented by a pixel.

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