Dear members in the forum,
In the description of the ARI1 (Anthocyanin Reflectance Index), it is written that its values ranges from 0 to 0.2 (see attached screenshot). But when I used its given formula [(1/R550)-(1/R700)], I get values from -3 to 17. I checked images from different dates but the values are not in the range from 0 to 0.2.
What could be possible cause of wrong range, does it require any conversions?