A Look-Up Table (LUT) is a mathematical table or set of rules used in digital imaging and colour grading to map one set of colour values to another. In the context of colour correction and grading, LUTs are often employed to transform the colours in an image, achieving specific looks or corrections. Cinematographers, photographers, and video professionals use LUTs to maintain colour consistency across different devices and workflows. LUTs can be utilized for tasks ranging from basic colour correction to the application of creative stylizations. They play a crucial role in ensuring colour accuracy and achieving desired visual aesthetics in various digital imaging applications.