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. 2019 Jul 25;9:10799. doi: 10.1038/s41598-019-47220-6

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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An underwater scene from India with zebrafish spectral sensitivity. (A) A 180° photo of the scanned underwater river scene from West Bengal, India, and the approximate 60° scanner covered window. (B) The zebrafish opsin complement. (C) The monochromatic opsin channels (RGBU) and the RGB reconstruction as in Fig. 5. (D) The achromatic and chromatic axes reconstructed back to images to show where in the scene information based on each axis can be found. (E) Loadings from each opsin channel as explained in Fig. 4E. (F) The cumulative variance explained (%) for each axis.