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Qué (quién) es Lookup table - definición
Lookup table
![Part of a 20th-century table of [[common logarithm]]s in the reference book [[Abramowitz and Stegun]].](https://commons.wikimedia.org/wiki/Special:FilePath/Abramowitz&Stegun.page97.agr.jpg?width=200 "Part of a 20th-century table of [[common logarithm]]s in the reference book [[Abramowitz and Stegun]].")
ARRAY DATA STRUCTURE THAT REPLACES RUNTIME COMPUTATION WITH A SIMPLER ARRAY INDEXING OPERATION
Look-up table; Look up table; Look-up; Lookup; VLOOKUP; Table (computing); Table lookup; XLOOKUP
In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation. The process is termed as "direct addressing" and LUTs differ from hash tables in a way that, to retrieve a value v with key k, a hash table would store the value v in the slot h(k) where h is a hash function i.
lookup
ARRAY DATA STRUCTURE THAT REPLACES RUNTIME COMPUTATION WITH A SIMPLER ARRAY INDEXING OPERATION
Look-up table; Look up table; Look-up; Lookup; VLOOKUP; Table (computing); Table lookup; XLOOKUP
¦ noun [usu. as modifier] systematic electronic information retrieval.
3D lookup table
In the film industry, 3D lookup tables (3D LUTs) are used to map one color space to another. They are commonly used to calculate preview colors for a monitor or digital projector of how an image will be reproduced on another display device, typically the final digitally projected image or release print of a movie.
