yatsm.vegetation_indices module

Functions for computing vegetation indices

yatsm.vegetation_indices.EVI(red, nir, blue)[source]

Return the Enhanced Vegetation Index for a set of np.ndarrays

EVI is calculated as:

\[2.5 * \frac{(NIR - RED)}{(NIR + C_1 * RED - C_2 * BLUE + L)}\]
where:
  • \(RED\) is the red band
  • \(NIR\) is the near infrared band
  • \(BLUE\) is the blue band
  • \(C_1 = 6\)
  • \(C_2 = 7.5\)
  • \(L = 1\)

Note: bands must be given in float datatype from [0, 1]

Parameters:
  • red – red band
  • nir – NIR band
  • blue – blue band
Returns:

EVI
Return type:

np.ndarray