How can I possibly resist the opportunity to post about something called METACOW?
The Munsell Color Science Laboratory at the Rochester Institute of Technology (RIT) has made available METACOW: "A Public-Domain, HighResolution, Fully-Digital, Noise-Free, Metameric, Extended-Dynamic-Range, Spectral Test Target for Imaging System Analysis and Simulation."
"[...] METACOW is basically a very large (4200 x 6000 pixel) full-spectral image. It is rendered at 5nm increments, between 380 to 760...and is thus about 3gigs in size. It is designed such that both halves of each "cow" appear to match when illuminated with CIE D65, and viewed with the CIE 1931 Standard Observer."
"[...] We are making the METACOW test target available to all, for use in imaging system design and evaluation. Since it is such a large image it is not really practical to download, so we will provide the image on DVD for a nominal $25 media & shipping/handling fee."
According to the web site, the DVD includes MATLAB code for reading and rendering METACOW.
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