Our world typically appears in an abundance of colors from which we derive a vast amount of information. Despite this, our eyes are still only sensitive to a relatively narrow range of wavelengths—from approximately 390-720 nm. As such, while standard visible light imaging of the skin provides a good amount of information about skin condition, such as redness, erythema, overall appearance and skin tone, our eyes are not sensitive to the broader spectral ranges as low as 300 nm and as high as 3,000 nm.
