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Fig. 8. Similar to Fig. 5A, but
showing the real color images (A) and false color images (B) of the partial
polarization (% Pol) of the arm stripes of the squid (Loligo
pealeii). Data collected in Position 1 (see
Fig. 1). The tilt or rotation
angle is shown at the left side of each row. The color coding of the partial
polarization values is shown at the right of the images. The color coded
images were also weighted with relative reflectance values of the original
images, as in the right panels of Fig.
2C,D. Note the apparent color change in the photos of squid arm
stripes at greater angles of tilt. These changes are not seen in the
reflectance spectra (Fig. 6),
and the arms did not obviously change color as seen by eye; they apparently
arise because of the extreme brightness of the reflections at these angles,
which affected the digital camera's automatic white-balance setting.
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