10.1371/journal.pone.0050389.g002
Marie-Jeanne Holveck
Marie-Jeanne
Holveck
Arnaud Grégoire
Arnaud
Grégoire
Vincent Staszewski
Vincent
Staszewski
Romain Guerreiro
Romain
Guerreiro
Philippe Perret
Philippe
Perret
Thierry Boulinier
Thierry
Boulinier
Claire Doutrelant
Claire
Doutrelant
Relationships of spot RGB scores (i.e. dots' color) with their spectral measures and pigmentation indices.
Public Library of Science
2012
rgb
scores
spectral
measures
pigmentation
2012-11-30 00:55:49
Figure
https://plos.figshare.com/articles/figure/_Relationships_of_spot_RGB_scores_i_e_dots_color_with_their_spectral_measures_and_pigmentation_indices_/203349
<p>(A) The two brown spectral variables, (B) the two principal components obtained from the three brown eggshell pigmentation indices. We increased the transparency of points (alpha = 200) to improve the visibility of the 474 eggs from 42 clutches in (B). We measured the spectral coloration of the spots on a subsample of 31 eggs from 30 clutches in (A). The brown spots become browner (in response to digital saturation and hue) and darker (digital brightness) as spectral brightness decreases (A) and PC1 values increase (B). There are not such relationships with spectral chroma (A) and PC2 values (B).</p>