Fig. 1
From: A 2D hyperspectral library of mineral reflectance, from 900 to 2500 nm
Setup to capture data. The sample is put on a support such as its upper surface is approximately horizontal. The hyperspectral camera is above the sample, there is a Logitech C920 webcam behind the sample to capture visible images for photogrammetry. Illumination is done using a halogen lamp (on the right). The white bar is the white reference (Spectralon).
