3D LUT

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In the film industry, 3D LUTs (lookup tables) are used to calculate preview colors for a monitor or digital projector of how an image will be reproduced on the final film print. A 3D LUT is a 3D lattice of output color values. Each axis is one of the 3 input color components and the input color thus defines a point inside the lattice. Since the point may not be on a lattice point, the lattice values must be interpolated, most products use trilinear interpolation.^{[citation needed]}

Cubes may be of various sizes and bit depths. Often 17x17x17 cubes are used as 3D LUTs. The most common practice is to use RGB 10bit/component log images as the input to the 3D LUT. Output is usually RGB values that are to be placed unchanged into a display device's buffer.

Modern graphics cards have direct support for 3D LUTs, allowing entire HD images to be processed at 60fps or faster.

See also

• Color grading
• Color calibration
• Color management

References

• Using LUTs An introduction to 1D and 3D LUTs and their use.

External links

Some systems for 3D LUT Generation

• Cine-tal cineSpace 3D LUT generation software for film color management
• FilmLight Truelight color management system
• Light Illusion 3D LUT Builder for 1D and 3D LUT generation.

Some systems supporting 3D LUTs

• Apple Shake compositing software
• ARRI ARRILASER Film rekorder, ARRICUBE Color Management System
• Assimilate Scratch color grading system
• Autodesk Media and Entertainment Flint, Flame, Inferno, Smoke, Fire, and Lustre
• Avid DS digital mastering system
• CHROME Imaging MATRIX Color Correction and Dustbusting Solutions
• Cine-tal Cinemage monitor and eLuma LUT processor
• Digital Vision Film Master, Data Conform and all software products
• Digital Film Technology LUTher 3D LUT processor
• DVS Clipster digital mastering systems
• Eyeon Fusion compositing software
• FilmLight Baselight color grading system and Truelight LUT processor
• The Foundry Nuke compositing software
• Gamma and Density 3cP on-set color grading system
• Interactive Effects Piranha Cinema visual effects system and Piranha Player
• IRIDAS SpeedGrade and FrameCycler
• Pandora Revolution and Pixi color grading systems
• Quantel color grading system
• Tcube FIG LUT processor