This user guide introduces various categories of SPy functions in a tutorial style. If you would like to test the commands presented in the guide, you should download the following sample data files, which are associated with a well-studied AVIRIS hyperspectral image collected over Indiana in 1992. [Landgrebe1998]
|92AV3C.lan||A small hyperspectral image chip (9.3 MB) in ERDAS/Lan format. The chip is 145x145 pixels from an AVIRIS image and contains 220 spectral bands.|
|92AV3GT.GIS||A land-use ground-truth map for the hyperspectral image chip in ERDAS/Lan format.|
|92AV3C.spc||An AVIRIS-formatted band calibration file for the image chip.|
Many of the examples presented in the guide are cumulative, with success of commands issued depending on previous commands and module imports. While it is generally not a good idea to import the contents of entire module namespaces, for brevity, the examples in the user guide assume that from spectral import * has been issued.
|[Landgrebe1998]||Landgrebe, D. Multispectral data analysis: A signal theory perspective. School of Electr. Comput. Eng., Purdue Univ., West Lafayette, IN (1998).|