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)

Learn more on the wiki page

Notes tagged with NDVI

Ask a question about NDVI Subscribe to answer questions on this topic



Subscribe

by views by likes


Single camera NDVI solution

by theowallis almost 5 years ago | 3 | 274 views | 0


Titan 2 IR flight

by cfastie almost 5 years ago | 2 | 91 views | 3



ndvi plant is growing

by GreenLeaves almost 5 years ago | 1 | 38 views | 0


Live Infragram

by lucenk almost 5 years ago | 6 | 42 views | 2


NDVI exposure setting

by gpenzo almost 5 years ago | 1 | 2,771 views | 1


Inconsistent two cam ndvi

by gpenzo almost 5 years ago | 6 | 140 views | 2


Using a RAW image to calibrate a JPEG image

by nedhorning almost 5 years ago | 1 | 210 views | 4


yellow sky

by GreenLeaves almost 5 years ago | 0 | 1,245 views | 1


Vienna Infragram

by GreenLeaves almost 5 years ago | 2 | 1,239 views | 1


a plant

by GreenLeaves almost 5 years ago | 0 | 950 views | 0


Vienna field

by GreenLeaves almost 5 years ago | 0 | 1,009 views | 0


Vienna Plants

by GreenLeaves almost 5 years ago | 0 | 12 views | 0


Raspberry Pi NDVI

by noctividus almost 5 years ago | 5 | 756 views | 4




Titan 2 IR

by cfastie almost 5 years ago | 5 | 199 views | 3


NDVI Quick Analysis Application

by daniedb68 almost 5 years ago | 5 | 475 views | 1



A Wratten 25A replacement from Rosco?

by mathew about 5 years ago | 10 | 662 views | 0


The Titan 2 Rig

by cfastie about 5 years ago | 1 | 99 views | 0


Mobius NDVI

by cfastie about 5 years ago | 29 | 1,154 views | 2


Mobius white balance

by cfastie about 5 years ago | 2 | 289 views | 3


NIR and white balance

by cfastie about 5 years ago | 1 | 237 views | 1