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. 2015 Apr 1;6(2):67–85. doi: 10.1068/i0701

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© 2015 J Koenderink, A van Doorn, L Albertazzi, J Wagemans Published under a Creative Commons Licence

This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (http://www.uk.sagepub.com/aboutus/openaccess.htm).

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Figure 3. — At top left 144 “open country” images from Torralba's SUN database (Xiao et al, 2010). At top right the average image, at bottom left the corresponding full colors (see Appendix B), at bottom right the corresponding brightness. Both the banding and the color scheme are immediately apparent. The average landscape is blue and light on top, yellow and dark at bottom. Notice that reds and purples do not appear in the overall average.