The original dataset was taken from the [Computer Vision Laboratory][1], and more specifically [this portion of the site][2]. The research PDF is available [here][3]. The response data didn't include the primary colours, nor the log encoding as the results are normalized. They are essentially junk Instagram-esque filters sadly. [1]: http://www.cs.columbia.edu/CAVE/ [2]: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php [3]: http://www1.cs.columbia.edu/CAVE/publications/pdfs/Grossberg_CVPR03.pdf