swectral.vegeind.dvi#

swectral.vegeind.dvi(spec_array, wavelength, axis=0)[source]#

Compute DVI (Difference Vegetation Index) of 2D array-like of 1D spectra data series. The calculation is based on:

Richardson, Arthur J., and C. L. Wiegand.
Distinguishing vegetation from soil background information
Photogrammetric engineering and remote sensing 43, no. 12 (1977): 1541-1552.

Parameters:

spec_array2D array_like, shape (n_samples, n_features): 2D array-like of 1D spectral data series.
wavelength1D array_like: Wavelengths for the spectra data.
axisint, optional: Axis of spectral data series index, must be 0 or 1. If 0, each row represents a sample spectrum.

Returns:

pandas.DataFrame: Dataframe containing spectral indices of the samples.

Return type:

DataFrame