LUT (Lookup Table)

A LUT (Lookup Table) is a data structure used to quickly translate input values into desired output values. Imagine it as an organized reference guide or a shortcut: instead of calculating or processing data each time, the LUT contains pre-defined results that can be retrieved instantly. In digital imaging or video, for example, a LUT adjusts colors or tones efficiently by mapping original pixel values to new ones, enabling quick color grading or correction. Essentially, it streamlines data transformation, saving time and computational resources while maintaining precise control over the output.