Such alteration in the carotenoid biosynthesis pathway corroborates at the biochemical level colour-based observations on the different developmental defects affecting 39B3 and 39E7 mutants.
Our everyman hero, Eddie Russett, is a mid-level colour who finds himself falling for a plucky nobody named Jane.
The variability in the features extracted using pixel-level colour constancy algorithms depend upon both the CCT of the illuminant and the sensors SNR.
One important conclusion from their work was that pixel-level colour constancy algorithms extract useful information from the responses of sensors whose spectral response covers a wavelength range of 80 nm or less [11].
Subsequently, Ratnasingam et al. [12] investigated the possibility of optimising the spectral responses of the image sensors to improve the quality of the illuminant invariant features that can be obtained from daylight illuminated scenes using pixel-level colour constancy algorithms.
This combined with the fact that the improvements in some cases are as large as 300% suggests that using ancillary information will significantly improve the ability to draw correct conclusions from the features from pixel-level colour constancy algorithms.
This observation suggests that if any information related to the probable illuminant spectrum is available then it might be possible to improve the interpretation of the features obtained from a pixel-level colour constancy algorithm.
A similar four-level colour scale is used for communications by the Volcanic Ash Advisory Centres (VAAC) that inform civil aviation authorities on the potential presence of ash clouds along airplane routes worldwide.
The possible benefits of employing the phase of the day in conjunction with date information when identifying the possible source of a set of features obtained using a pixel-level colour constancy algorithm have been assessed using the measured daylight spectra [20].
In this article, we present an investigation of possible improvement of the colour constant reflectance features that can be obtained from daylight illuminated scenes using pixel-level colour constancy algorithms (model-based algorithm: S Ratnasingam, S Collins, J. Opt. Soc. Am. A 27, 286 294 (2010) and Projection-based algorithm: GD Finlayson, MS Drew, IEEE ICCV, 2001, pp. 473 480).
