IAVI

The IAVI operator algorithm computes the New Atmospherically Resistant Vegetation Index from a given product.

The IAVI results from the following equation:

IAVI = (N - (R - gamma * (B - R))) / (N + (R - gamma * (B - R)))

, where:

The bands are:

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

and the coefficients are:

- g is the Gain factor coefficient
- gamma is the Weighting coefficient used for ARVI coefficient

IAVI-Flags

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

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