A LUT, or "Look-Up Table," is a mathematical table or formula used in digital image and video processing. It enables the mapping of input values to corresponding output values, facilitating color grading, color correction, and other adjustments for images or videos. LUTs find widespread application in various industries, such as filmmaking, photography, and computer graphics, to achieve precise color or tone transformations.
These tables or formulas, also referred to as Lookup Tables, serve as mathematical formulas that convert the color of an original image into new parameters for the resulting image. LUTs can serve technical purposes, like converting between different color spaces (like the one available in my store for DJI D-cinelike & DLOG) or performing monitor calibration. Additionally, LUTs can be creatively utilized to give videos a specific appearance or replicate the visual characteristics of particular film stocks.