Research Article

Quantification of the Spectral Variability of Ore-Bearing Granodiorite under Supervised and Semisupervised Conditions: An Upscaling Approach

Figure 4

The spectral standard deviation calculated using the laboratory measurements (a–c) for M1-M3, respectively, and using the field measurements (d–f) for M1-M3, respectively.
(a)
(b)
(c)
(d)
(e)
(f)