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

Table 4

Results of SAM using an external reference which is a spectrum with a reflectance equaling to unity across the entire spectral range.

			External reference
Laboratory	Level 0	M1	0.13
		M2	0.29
		M3	0.25
	Level 1	M1	0.13
		M2	0.28
		M3	0.25
	Level 2	M1	0.13
		M2	0.28
		M3	0.24
	Level 3	M1	0.11
		M2	0.28
		M3	0.23
Field	Level 0x	M1	0.10
		M2	0.31
		M3	0.26
	Level 3x	M1	0.09
		M2	0.31
		M3	0.26