The NLI operator algorithm computes the Non-Linear Vegetation Index from a given product.

The NLI results from the following equation:

NLI = ((pow(N , 2)) - R) / ((pow(N , 2)) + R)

, where:

The bands are:

- R is the Red band
- N is the NIR band

Also the processor computes an additional flags band called 'nli_flags' with the following bit coding:

Bit Position	Description
Bit 0	The computed value for NLI is NAN or is Infinite
Bit 1	The computed value for NLI is less than -1 (minus one)
Bit 2	The computed value for NLI is greater than 1 (one)