* Reliability values show how often both eyes will be detected after LBP frontal face detection when no eyeglasses are worn and both eyes are open. If eyes are closed then the reliability may drop, or if eyeglasses are worn then both reliability and speed will drop.
** Speed values are in milliseconds for images scaled to the size of 320 x 240 pixels on an Intel Core i7 2.2 GHz (averaged across 1,000 photos). Speed is typically much faster when eyes are found than when eyes are not found, as it must scan the entire image, but the haarcascade_mcs_lefteye.xml is still much slower than the other eye detectors.