HP responded, saying that the algorithm “measure[s] the difference in intensity of contrast between the eyes and the upper cheek and nose. [HP] believe[s] that the camera might have difficulty ‘seeing’ contrast in conditions where there is insufficient foreground lighting.”measure the difference in intensity of contrast between the eyes and the upper cheek and nose. [HP] believe[s] that the camera might have difficulty ‘seeing’ contrast in conditions where there is insufficient foreground lighting.”
In other words, Desi was too black for the camera to see! Nice job, HP!