Ruderman, Cronin, and Chiao hyperspectral natural image dataset
Here is a link to download the twelve hyperspectral images used in ‘Statistics of cone responses to natural images: implications for visual coding’ (1998) by Ruderman, Daniel L and Cronin, Thomas W and Chiao, Chuan-Chin. A basic conversion of the hyperspectral data to RGB can be seen above.
I’ve included a short script on how to read the data in python. Feel free to reach out if there are any issues.