Mathematical table mapping input color values to output values for color transformation.
Definition
A LUT (Look-Up Table) is a file that defines how input color values are transformed into output color values. It enables complex color transformations with minimal computational effort.
Practical Application
Technical LUTs: Log-to-Rec.709 conversion. Creative LUTs: Predefined looks. Calibration LUTs: Monitor calibration. LUTs are used on-set for preview and in post-production for final transformation.
Technical Details
1D LUT: Three separate curves for R, G, B. 3D LUT: Complete 3D color transformation within a cube. Standard sizes: 17x17x17 to 65x65x65. Formats: .cube.3dl.csp. Interpolation fills intermediate values.
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