| TVI Algorithm Specification | |
The TVI operator algorithm computes the
Transformed Vegetation
Index from a given product.
The TVI results from the following equation:
TVI = pow((((N - R) / (N + R)) + 0.5) , 0.5)
, where:
The bands are:
- R is the Red band
- N is the NIR band
Also the processor computes an additional flags band called 'tvi_flags' with the following bit coding:
| Bit Position | Description |
|---|---|
| Bit 0 | The computed value for TVI is NAN or is Infinite |
| Bit 1 | The computed value for TVI is less than -1 (minus one) |
| Bit 2 | The computed value for TVI is greater than 1 (one) |