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barron.torrent.redness.LAB

Barron & Torrent (1986) Redness Index in LAB color space

Description

Calculate Redness Index after Barron & Torrent (1986) "Use of the Kubelka—Munk Theory to Study the Influence of Iron Oxides on Soil Colour" using Munsell colors converted to LAB. DOI: 10.1111/j.1365-2389.1986.tb00382.x. Accepts vectorized inputs for hue, value and chroma, produces vector output.

Usage

barron.torrent.redness.LAB(hue, value, chroma)

Arguments

`hue`	A character vector containing Munsell hues (e.g. "7.5YR")
`value`	A numeric vector containing Munsell values
`chroma`	A numeric vector containing Munsell chromas

Value

A numeric vector of horizon redness index (higher values = redder).

Author(s)

Andrew G. Brown.

References

Barron, V. and Torrent, J. (1986), Use of the Kubelka—Munk theory to study the influence of iron oxides on soil colour. Journal of Soil Science, 37: 499-510. doi:10.1111/j.1365-2389.1986.tb00382.x

aqp

Algorithms for Quantitative Pedology

v1.29

GPL (>= 3)

Authors

Dylan Beaudette [aut, cre], Pierre Roudier [aut, ctb], Andrew Brown [aut, ctb]

Initial release

2021-04-05