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. 2011 May 20;6(5):e19248. doi: 10.1371/journal.pone.0019248

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Zhaoping et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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All these curves are by fixing input intensity , while using in which is normalized by Max, while are no longer normalized by Max. The values are , , , and for protanopes, deuteranopes, tritanopes, and trichromats, respectively.

Inline graphic — All these curves are by fixing input intensity , while using in which is normalized by Max, while are no longer normalized by Max. The values are , , , and for protanopes, deuteranopes, tritanopes, and trichromats, respectively.