Colour laser scanner characterisation by enhanced LUT

Lindsay MacDonald
University College London (UK)
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This study investigated how to improve the accuracy of colour characterisation for a three-colour laser scanner, implemented by a lookup table (LUT) with interpolation. The transfer function was trained on a huge number of real and synthetic reflectance spectra, refined through statistical analysis. The lookup table enabled a ‘baseline’ matrix fitting to be enhanced through local deformations of 3D colour space to give optimal colorimetric performance.

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