Abstract
Metrics that predict the perceptual brightness of displayed imagery are vitally important, especially as wide color gamut, high dynamic range displays become more widespread. We implemented a color appearance modeling pipeline derived from the iCAM image color appearance framework and CAM76 color appearance model that allows for the accurate prediction of color appearance attributes, such as brightness, colorfulness, and vividness, of high dynamic range displayed imagery. Building on previous work on the Perceptual Contrast Length metric, we propose an updated Color Perceptual Contrast Length that correlates well with subjective ratings of display brightness.
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