Multilayer NMF (MLNMF) for Spectral Unmixing
R. Rajabi, H. Ghassemian, “Spectral Unmixing of Hyperspectral Imagery Using Multilayer NMF,” IEEE Geoscience and Remote Sensing Letters, vol.12, no.1, pp.38-42, Jan. 2015. (Download MATLAB Code :: MLNMF Demo)
USGS Spectral Library

Convolved Spectral Library for NASA/JPL Airborne Visual and Infra-Red Imaging Spectrometer (AVIRIS): Download Matlab .Mat File

Data includes:
names: Name of Materials
sign: Spectral Signatures of Materials
wlen: Wavelenghts
Plot of sample materials is shown in the figure below. (Download Matlab .M File)
Reference: Clark, R.N., Swayze, G.A., Wise, R., Livo, E., Hoefen, T., Kokaly, R., Sutley, S.J., 2007, USGS digital spectral library splib06a: U.S. Geological Survey, Digital Data Series 231,
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GNU General Public License