Fig. 6: Edge case scenarios on PTO sample 1.

a final learned target spectral structure after assessment by the domain expert (reproduced from Fig. 2b). b Actual ground truth image for target (a) (reproduced from Fig. 2d). The colorbar represents the red region with the spectrum having high structural similarity with the target, and blue region with the spectrum having low structural similarity with the target. c Final learned target spectral structure for EC1 (red) and mean spectral structure (black). d Difference in structural similarity map between actual ground truth and ground truth generated for EC1. e Final learned target spectrum for EC2. d Difference in structural similarity map between actual ground truth and ground truth generated for EC2. The colorbar for figs (d, f) represents the red region with spectral having higher structural similarity with the actual target, and the blue region with spectral having higher structural similarity with the edge case generated targets.