NDVI and NRG

NDVI stands for "Normalized Difference Vegetation Index". NRG stands for "Near-infrared / Red / Green". NDVI and NRG are both ways to visualize the amounts of infrared and other wavelengths of light reflected from vegetation. Because both these methods compare ratios of blue and red light absorbed versus green and IR light reflected, they can be used to evaluate the health of vegetation. It's a snapshot of how much photosynthesis is happening. This is helpful in assessing vegetative health or stress. (Read more here: https://www.agronomy.org/publications/jeq/articles/36/3/832)

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Notes on NDVI by cfastie

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Dual NDVI Ultra Probe Unit

by cfastie about 2 years ago | 8 | 997 views | 4


Graze anatomy

by cfastie about 3 years ago | 8 | 284 views | 4


Calibration cogitation

by cfastie about 3 years ago | 11 | 269 views | 5


Pole NDVI of deer grazing

by cfastie about 3 years ago | 4 | 378 views | 6


Single vs. dual cameras

by cfastie over 3 years ago | 1 | 474 views | 3


Testing MIDOPT filters

by cfastie over 3 years ago | 9 | 230 views | 3


Dual bandpass filters

by cfastie over 3 years ago | 10 | 1,002 views | 2


Crown Point Fort infrared

by cfastie about 4 years ago | 2 | 142 views | 4


Orange is the new red

by cfastie over 4 years ago | 11 | 592 views | 6


Event38 NDVI over Cocodrie

by cfastie over 4 years ago | 3 | 139 views | 1


The KAPtober Collection

by cfastie over 4 years ago | 1 | 139 views | 2


NIR and water

by cfastie over 4 years ago | 1 | 2,976 views | 4


LEAFFEST aerials

by cfastie over 4 years ago | 1 | 178 views | 2


The LEAFFEST Line

by cfastie almost 5 years ago | 2 | 274 views | 0


New NDVI colormap

by cfastie almost 5 years ago | 30 | 3,027 views | 8


Titan 2 IR flight

by cfastie almost 5 years ago | 2 | 94 views | 3


Titan 2 IR

by cfastie almost 5 years ago | 5 | 202 views | 3


Super Redstone

by cfastie about 5 years ago | 3 | 164 views | 2


The Titan 2 Rig

by cfastie about 5 years ago | 1 | 100 views | 0


Mobius NDVI

by cfastie about 5 years ago | 29 | 1,171 views | 2


Mobius white balance

by cfastie about 5 years ago | 2 | 293 views | 3


NIR and white balance

by cfastie about 5 years ago | 1 | 242 views | 1


Mobius IR conversion

by cfastie about 5 years ago | 21 | 1,949 views | 2


Mobius Filter-O-Matic

by cfastie about 5 years ago | 4 | 628 views | 1