The spectral geologist (TSG) is an industry standard software for hyperspectral data analysis https://research.csiro.au/thespectralgeologist/
pytsg is an open source one function utility that imports the spectral geologist file package into a simple object.
Installation is via pip
pip install pytsg
If using the top level importer the data is assumed to follow this structure
\HOLENAME
\HOLEMAME_tsg.bip
\HOLENAME_tsg.tsg
\HOLENAME_tsg_tir.bip
\HOLENAME_tsg_tir.tsg
\HOLENAME_tsg_hires.dat
\HOLENAME_tsg_cras.bip
from matplotlib import pyplot as plt
from pytsg import parse_tsg
data = parse_tsg.read_package('example_data/ETG0187')
plt.plot(data.nir.wavelength, data.nir.spectra[0, 0:10, :].T)
plt.plot(data.tir.wavelength, data.tir.spectra[0, 0:10, :].T)
plt.xlabel('Wavelength nm')
plt.ylabel('Reflectance')
plt.title('pytsg reads tsg files')
plt.show()If you would prefer to have full control over importing individual files the following syntax is what you need
# bip files
nir = parse_tsg.read_tsg_bip_pair('ETG0187_tsg.tsg','ETG0187_tsg.bip','nir')
tir = parse_tsg.read_tsg_bip_pair('ETG0187_tsg_tir.tsg','ETG0187_tsg_tir.bip','tir')
# cras file
cras = parse_tsg.read_cras('ETG0187_tsg_cras.bip')
# hires dat file
lidar = parse_tsg.read_lidar('ETG0187_tsg_hires.dat')
For convienience
Thanks to CSIRO and in particular Andrew Rodger for his assistance in decoding the file structures.