| TRRVI Algorithm Specification | |
The TRRVI operator algorithm computes the
Transformed Red Range
Vegetation Index from a given
product.
The TRRVI results from the following equation:
TRRVI = ((RE2 - R) / (RE2 + R)) / (((N - R) / (N + R)) +
1.0)
, where:
The bands are:
- RE2 is the Red Edge 2 band
- R is the Red band
- N is the NIR band
Also the processor computes an additional flags band called 'trrvi_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for TRRVI is NAN or is Infinite |
| Bit 1 | The computed value for TRRVI is less than -1 (minus one) |
| Bit 2 | The computed value for TRRVI is greater than 1 (one) |