Color Grading
Color Lookup Tables: The Secret Weapon of Color Grading
Color Lookup Tables — LUTs — are the film industry’s approach to color grading, and they’ve quietly become one of the most powerful tools in Photoshop for photographers. A LUT remaps every color in your image according to a predefined table, applying complex color transformations in a single step. What a LUT Actually Does Think of a LUT as a translation dictionary for color. For every possible input color (defined by its red, green, and blue values), the LUT specifies an output color.