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LAB

A color space that most closely resembles the color spectrum a human eye can perceive. [L] represents the lightness or luminosity of the image, [A] represents the Red/Green axis, [B] represents the Blue/Yellow axis. These values are plotted at right angles to each other in a three dimensional manner.

Linearization

The process of calibrating a scanner's white point, 50% gray point and black point. This is usually accomplished by scanning a grayscale target.

Lineart

An image having only one level of contrast or (1) bit depth. A lineart image can be either Bitmap or vector.

LPI

Lines Per Inch. Also referred to as line screen. The greater the LPI the more continuous looking the image will appear to the human eye. A newspaper is generally printed at 85-100 LPI while magazines are printed from 133-175 or higher.





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