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


by views by likes

Title URL Last edited Edits Page Views Likes
ImageSequencerBookmarklet /wiki/imagesequencerbookmarklet 6 months ago by warren 18 291 2
Infrablue Kickstarter Update 3 /wiki/infrablue-kickstarter-update-3 10 months ago by cfastie 14 3,410 0
Infragram /wiki/infragram about 1 year ago by warren 112 10,904 12
NDVI and NRG /wiki/ndvi about 1 year ago by warren 26 7,324 11
Image Sequencer /wiki/image-sequencer about 1 year ago by warren 7 1,311 2