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mdatools (version 0.14.1)

prep.ref2km: Kubelka-Munk transformation

Description

Applies Kubelka-Munk (km) transformation to data matrix (spectra)

Usage

prep.ref2km(data)

Value

preprocessed spectra.

Arguments

data

a matrix with spectra values (absolute reflectance values)

Details

Kubelka-Munk is useful preprocessing method for diffuse reflection spectra (e.g. taken for powders or rough surface). It transforms the reflectance spectra R to K/M units as follows: (1 - R)^2 / 2R