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Volume: 11 | Article ID: art00031
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A Radial Sampling of the OSA Uniform Color Scales
  DOI :  10.2352/CIC.2003.11.1.art00031  Published OnlineJanuary 2003
Abstract

The OSA Uniform Color Scales were derived using a unique geometry for the physical samples. Regular rhombohedral packing allows each sample to be compared to twelve other equally distant samples. While this sampling scheme provides an efficient geometry for sample comparison and allows multiple cleavage planes, it obscures the underlying perceptual attributes. However, it is relatively straightforward to compute a radial sampling of data points in OSA. This radial sampling results in a distance from the achromatic axis and an angular quantity and can be used to compare other color spaces. This paper presents a method and considerations for computing the radial sampling. The utility of this data is demonstrated by comparing the perceptual uniformity of five different color spaces.

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Nathan Moroney, "A Radial Sampling of the OSA Uniform Color Scalesin Proc. IS&T 11th Color and Imaging Conf.,  2003,  pp 175 - 180,  https://doi.org/10.2352/CIC.2003.11.1.art00031

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