Fig. 6: NIR-HSI results for sample BRA-6334. | Communications Chemistry

Fig. 6: NIR-HSI results for sample BRA-6334.

From: Near-infrared hyperspectral imaging to map collagen content in prehistoric bones for radiocarbon dating

Fig. 6

a Grey-scale total intensity image; b PLS map of the reference samples. The colour bar numbers refer to collagen % predicted by the PLS model. The red square area is the selected sample taken for the extraction of collagen; c–e ROIs referring to areas with different collagen concentrations (blue: low, green: mid-level, red: high) on an individually scaled map.

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