Glossary for Geospatial Science

  Technical vocabulary defined by MicroImages

book Glossary

Transformed Vegetation Index:  A commonly used vegetation index derived from images of certain spectral bands.  The TVI is equal to the square root of the quotient of the photo-infrared minus the red band, and the photo-infrared plus the red band {SQRT[(IR - red) / (IR + red)]}.  Common color-infrared image sources that TNTmips uses to compute TVI index rasters include Landsat MSS and TM, SPOT CIR, 35mm CIR film, 9" CIR film, and CIR video.