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Journal Article

Calculating the vegetation index faster

Remote Sensing of Environment (1990) 34(1) 71-73
DOI: 10.1016/0034-4257(90)90085-Z
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Abstract

The near-infrared (NIR) versus red "infrared percentage vegetation index," NIR/(NIR + Red), is functionally and linearly equivalent to the normalized difference vegetation index, (NIR-Red/(NIR + Red). Advantageously, it is both computationally faster and never negative. © 1990.

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Crippen, R. E. (1990). Calculating the vegetation index faster. Remote Sensing of Environment, 34(1), 71–73. https://doi.org/10.1016/0034-4257(90)90085-Z

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