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GPU Gems 2: Programming Techniques for High-Performance Graphics and General-Purpose Computation by Randima Fernando, Matt Pharr

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Chapter 24. Using Lookup Tables to Accelerate Color Transformations

Jeremy SelanSony Pictures Imageworks

In feature-film visual-effects production, maintaining interactive feedback of high-quality color operations is extraordinarily beneficial to an artist. On the consumer side, enabling the real-time color correction of video and rendered image streams is becoming an increasingly useful tool to shape media’s thematic “look.” However, directly applying multiple sophisticated color transforms to high-resolution imagery is beyond the real-time capability of modern graphics hardware.

In this chapter, we present an algorithm that leverages three-dimensional lookup tables to enable the real-time color processing of high-resolution imagery. Our approach ...

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