Results of the two automated Spectral Angle Mapper analyses from image 1, showing the pixels identified as “whale” in the automated procedure and the associated errors.

Spectral Angle mapper returns pixels with associated “likelihood” results, these values are associated with how closely (between 1–100) each identified pixel matches the training data. By thresholding these values, the algorithm can be tuned to remove errors of omission or errors of commission. Here we give pixel results with three “Likelihoods”; all likelihoods, likelihoods over 40 and likelihoods over 65.