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
Stats

Notes tagged with ndvi

Ask a question about ndvi or Subscribe to answer questions on this topic



Subscribe

by views by likes



vineyard spectral

by elador over 2 years ago | 1 | 661 | 4


Updated Image Sequencer Colormaps!

by MaggPi about 1 month ago | 2 | 130 | 1



Improved DIY NIR camera calibration

by nedhorning almost 5 years ago | 48 | 10,747 | 7


Dual bandpass filters

by cfastie about 3 years ago | 9 | 3,999 | 2


Graze anatomy

by cfastie almost 3 years ago | 8 | 1,593 | 4


Artichoke filter search

by cfastie almost 6 years ago | 0 | 2,856 | 0


Super Redstone

by cfastie over 4 years ago | 3 | 3,482 | 3


iFarm Big Picture

by cfastie almost 6 years ago | 0 | 4,827 | 1


Silvopasture

by cfastie over 5 years ago | 0 | 4,411 | 1


Multigrain NDVI

by cfastie almost 6 years ago | 3 | 6,014 | 2


The KAPtober Collection

by cfastie over 4 years ago | 1 | 4,320 | 5


LEAFFEST aerials

by cfastie over 4 years ago | 1 | 3,173 | 3


Big NDVI

by cfastie over 5 years ago | 3 | 2,468 | 2


Rock Tripe Slab

by cfastie over 5 years ago | 0 | 2,196 | 0


2 cameras or not 2 cameras

by cfastie over 5 years ago | 2 | 4,776 | 2


Stitched panoramas from the PLOTS IR camera tool

by cfastie almost 7 years ago | 8 | 5,677 | 0


Multispectral DeFelice

by cfastie almost 6 years ago | 4 | 3,190 | 1


Agricultural mapping

by cfastie over 6 years ago | 0 | 7,690 | 2


NDVI output

by cfastie over 6 years ago | 2 | 29,834 | 2