In this paper the ability of an algorithm proposed by Finlayson and Drew [1] to separate similar colours is assessed. A new variant of this algorithm is then ...
Both algorithms map different colours into a 2-dimensional space, invariant to scene geometry and illuminant. The 2 dimensional spaces formed by these ...
The perception of an unchanging surface color under different illuminations requires the computation of the scene-illuminant color either directly or indirectly ...
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Chromaticity Coordinate - an overview | ScienceDirect Topics
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The chromaticity coordinates (x,y) are calculated as x = X/(X + Y + Z) and y = Y/(X + Y + Z). Any color of light can be represented on the CIE 1931 (x,y) ...
Standard illuminants provide a basis for comparing images or colors recorded under different lighting. Relative spectral power distributions (SPDs) of CIE ...
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In this paper we investigate the suitability of adapting 5 state-of-the-art color constancy methods so that they can be used for local illuminant estimation.
Conference item. An algorithm to determine the chromaticity under non-uniform illuminant. Publication status: Published ...
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... illuminant in conditions where the specular highlight cue would give a seriously misleading estimate. One peculiarity of the Lee-D`Zmura-Lennie algorithm is ...
... find a unique solution, which is often very accurate. The method can also be generalized to compute the illuminant chromaticity for a nonuniform smooth.
Once q has been determined, we assign each illuminant color estimate is the color of the closest illuminant in Sopt. The outcome for the two example images ...