The colour of the wrapper is no indication of the strength of a cigar, but considerable care is given to the matching of colours.
Colour vision test For colour trials, 100 unique pairs of shapes (Fig. 1 c, d) were filled with the green and the blue that were identical in brightness ("Matching brightness of colour" section).
Matching brightness of colour Pairs of a green and a blue, a blue and a grey, or a green and a grey disc of different intensities were presented on the monitor on a black background (Fig. 1a).
Figures of the experimental apparatus can be found in online resource 1. Matching brightness of colour Pairs of a green and a blue, a blue and a grey, or a green and a grey disc of different intensities were presented on the monitor on a black background (Fig. 1 a).
The camouflage techniques used are the matching of background colour and pattern, and disruption of outlines.
Matching the brightness of colour Prior to each session, the harbour seal was given 5 min to adapt to the ambient light.
Matching the brightness of colour The intensities of green, blue, and grey that were calculated to be equally bright for a spectral sensitivity with λmax 496 nm (scotopic), λmax 510 nm, or λmax 553 nm (photopic) are shown in Table 2.> -wrap-foot> The intensities are given as photons cm−2 s−1.
Matching the brightness of colour The intensities of green, blue, and grey that were calculated to be equally bright for a spectral sensitivity with λ max 496 nm (scotopic), λ max 510 nm, or λ max 553 nm (photopic) are shown in Table 2.
The company also announced a collaboration designed to improve the efficiency of colour matching for polyolefin products.
The aim of this study was to determine, under field conditions, the effect of colour matching on the interaction between the Australian crab spider Thomisus spectabilis and the European honeybee Apis mellifera.
