https://www.esri.com/arcgis-blog/products/arcgis-pro/imagery/spectral-index-library-arcgis
Spectral Index Library in ArcGIS | Get More From Your Imagery
Apr 19, 2022 - Introduction to the ArcGIS Spectral Index Library, a package of pre-defined indices that you can apply to your imagery on your desktop or on the web.
spectral indexget morelibraryarcgisimagery
https://www.mathworks.com/help/images/ref/customspectralindex.html
customSpectralIndex - Compute spectral index using custom formula - MATLAB
Custom spectral indices can ease workflows where standard spectral indices are not applicable.
spectral indexcustom formulacomputeusingmatlab
https://www.aanda.org/articles/aa/full_html/2015/12/aa25269-14/aa25269-14.html
Galactic cold cores - VI. Dust opacity spectral index | Astronomy & Astrophysics (A&A)
spectral indexastronomy astrophysicsgalacticcoldcores
https://www.mdpi.com/2072-4292/13/17/3390
Rice Yield Estimation Based on Vegetation Index and Florescence Spectral Information from UAV...
Rice floret number per unit area as one of the key yield structure parameters is directly related to the final yield of rice. Previous studies paid little...
https://arxiv.org/abs/1406.3342v1
[1406.3342v1] Large tensor-to-scalar ratio and running of the scalar spectral index with Instep...
Abstract page for arXiv paper 1406.3342v1: Large tensor-to-scalar ratio and running of the scalar spectral index with Instep Inflation