Raster indices

Defined indices

Index	Description	Formula	Reverence
EVI	Enhanced vegetation index	(r800 - r670) / (r800 + 6 * r670 - 7.5 * r475 + 1)	https://doi.org/10.1016/S0034-4257(02)00096-2
EVI2	Enhanced vegetation index	2.5 * ((r800 - r680) / (r800 + r680 + 1))	https://doi.org/10.1016/S0034-4257(02)00096-2
ExG	Excess of green	2 * green - red - blue	https://doi.org/10.15159/ar.19.119
GLI	Green Leaf Index	(2 * green - red - blue) / ( 2 * green + red + blue)	https://doi.org/10.15159/ar.19.119
MGVRI	Modified Green Red Vegetation Index	(green^2 - red^2) / (green^2 + red^2)	https://doi.org/10.15159/ar.19.119
MPRI	Modified photochemical reflectance index	(green - red) / (green + red)	https://doi.org/10.15159/ar.19.119
NDVI	Normalized difference vegetation index	(r800 - r680) / (r800 + r680)	https://doi.org/10.1016/0034-4257(79)90013-0
RGVBI	Red Green Blue Vegetation Index	(green - blue * red) / (green^2 + blue * red)	https://doi.org/10.15159/ar.19.119
SAVI	Soil-adjusted vegetation index	(r800 - r670) / (r800 + r670 + 0.5) * (1 + 0.5)	https://doi.org/10.1016/0034-4257(88)90106-X
TGI	Triangular greenness index	-0.5 * ( 190 * (r670 - r550) - 120 * (r670 - r480))	https://doi.org/10.1016/j.jag.2012.07.020
VEG	Vegetativen	green / (red^0.667 * blue^0.333)	https://doi.org/10.15159/ar.19.119

The formula column contains the formula in RSDB notation.
In RSDB index name and formula are equivalent.

Formula specification

RSDB raster product formulas are intuitive arithmetic expressions.

A formula is composed of following components:

Component	Examples
Band by band number	b1, b2, b111
Nearest band of wavelength in nm	r670, r800
Special band by name	red, green, blue
Number	42, 42.1, +42.1, -42.1
Basic arithmetic	b1+b111, b1-b111 , b1*b111, b1/b111
Exponentiation	b1^b2, r670^2
Composition and parentheses	2.5 * ((r800 - r680) / (r800 + r680 + 1))
Sets of bands	[b1, b2, b3], [b1, (r800 - r680) / (r800 + r680), b3]