The NDVIMNDWI operator algorithm computes the NDVI-MNDWI Model from a given product.

The NDVIMNDWI results from the following equation:

NDVIMNDWI = ((N - R) / (N + R)) - ((G - S1) / (G + S1))

, where:

The bands are:

- G is the Green band
- R is the Red band
- N is the NIR band
- S1 is the SWIR 1 band

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

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