This file archive contains the raw data from hyperspectral imaging of Baltic sea algae cultures performed on 16th of August, 2018 at the hyperspectral imaging laboratory of the Faculty of Information Technology, University of Jyväskylä, Finland. The dataset contains images of cultures of the following algal species in various dilutions and mixes: Diatoma tenuis DTTV-1401 Melosira arctica MATV-1402 Scrippsiella hangoei (aka Apocalathium malmogiense) SHTV-1 Kryptopendinium foliaceum KFF-1001 Monoraphidinium sp. TV70 Chlorella pyrenoidosa TV216 In addition, the dataset includes images of pure water samples, empty petri dishes and millimeter paper useful for transmittance calculations and size measurement. The imaging setup consisted of living samples pipeted on glass Petri dishes, with a halogen light source illuminating the dish from the bottom towards the camera on top. The signal in each image contains slight fluctuation in the spectral dimension due to the AC current light source used.

This research received funding from The Finnish Cultural Foundation and The Department of Biological and Environmental Science, University of Jyväskylä, Finland.