Spectral indices

Equation

References

BI: Brightness index

B 2 + G 2 + R 2 3

ZhuoLuoa et al., 2008

Int1: intensity within the visible spectral range

G + R 2

Douaoui et al., 2006

Int2: intensity within the VIS-NIR spectral range

G + R + N I R 2

Douaoui et al., 2006

CI: Color index

R G R + G

ZhuoLuoa et al., 2008

HI: Hue index

2 R G B G B

ZhuoLuoa et al., 2008

RI: Redness index

R 2 B + G 2

ZhuoLuoa et al., 2008

SI1: salinity index 1

B R

Khan et al., 2005

SI2: salinity index 2

G R

Khan et al., 2005

SI3: salinity index 3

G 2 + R 2 + N I R 2

Douaoui et al., 2006

SI4: salinity index 4

G 2 + R 2

Douaoui et al., 2006

SI5: salinity index5

B R

Bannari et al., 2008

S I9: salinity index 9

N I R R G

Abass and Khan, 2007

SI-11: salinity index 11

S W I R 1 S W I R 2

Bannari et al., 2008

ASTER_SI: salinity index ASTER

S W I R 1 S W I R 2 S W I R 1 + S W I R 2

Bannari et al., 2008