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look-up table

a collection of stored results that can be accessed very rapidly by a program without the need to calculate each result whenever needed. Abbr LUT

COMMENT: For computer graphics a look-up table may be a table of pixel intensity or colour information which increases the range of values that can be displayed. Since the values are stored in a look-up table they do not have to be computed each time they are called up, and execution time is reduced.



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