Hyperspectral imaging (HSI) captures hundreds of narrow, contiguous wavelength bands, typically spanning the visible, near-infrared (NIR), and shortwave infrared (SWIR) spectrums. This "imaging spectroscopy" provides a detailed chemical fingerprint for every pixel, making it essential for applications in agriculture, mineralogy, and environmental monitoring.
If you are looking to for research or machine learning, several high-quality, open-access repositories and benchmark scenes are available. 1. Major Open-Access Portals download hyperspectral datasets
For broad geographical coverage and satellite-based HSI, these federal and international portals are the primary sources for raw and processed data. contiguous wavelength bands