“…The outer ear also differs from other biometrics, such as the face, since the face can be affected by facial expression, ageing, wearing sunglasses, makeup effects, and growing or shaving beard [15]. Furthermore, the ear size is bigger compared to the size of iris, retina, and fingerprint, so it is likewise readily capturing from a distance [16,17]. The outer ear and its important features have been described by several researchers since it has a significant role in the identification of victims of crimes and criminals or accidents surveillance video, and authentications [18,19].…”