More specifically, the colour channels may have intensity offsets due to colour balancing.
Its high iron content may be also due to colouring agents intentionally added, imparting its blue colour.
The potential difficulty in reading maps due to colour blindness was raised as an issue by several participants.
Secondly, we find a compact skin-only mask expanding at the face edges, by computing the intersection of a skin-only GMM-based result with a threshold-based skin detection on HSV colourspace - due to colour perception [52].
Walsh gained his pilot license, but failed the medical examination to fly fighter jets due to colour blindness.
This indicates that variability in environmental light conditions, although potentially affecting conspicuousness of birds [e.g. 43], does not greatly affect the degree of discriminable variability between individuals due to colour-constancy, which has been described as the ability of perceiving a given reflectance spectrum as a fixed "colour" under variable illumination [16].
Both our findings and those of Bond and Kamil (2006) [36] highlight the importance of the interactive effects of prey colouration and backgrounds, particularly in the degree of heterogeneity, on predator cognition for understanding camouflage due to colour-markings in the field.
The quantitative variation of these molecules could be due to colour change of C. tinctorius flowers.
The quantitative variation of these two molecules could be due to colour change of C. tinctorius flowers.
However, due to colour coding of the study product and placebo in three trials, it was unclear whether blinding was maintained.
