A Look-Up Table is essentially a map. It takes an input color (RGB) and replaces it with a specific output color. Instead of calculating complex mathematical formulas for every pixel in real-time, the system simply looks up the value in the table.
Every LUT starts as an "Identity LUT." This is a table where the output color matches the input color exactly. In a 3D space, you generate a grid of RGB values ranging from 0 to 1. 2. Applying Transformations lut creator js