1. A method of enhancing an appearance of a face within a digital image, comprising using a processor in: acquiring a digital image of a scene including a face, including capturing the image using a lens and an image sensor of a processing device that includes the processor, or receiving said image following capture by another device that includes a lens and an image sensor, or a combination thereof; detecting the face within the digital image; segmenting skin tone portions of the face from face features including one or two eyes; within at least one of the eyes, identifying a border between an iris and a sclera of the eye using luminance information; enhancing pixels of the iris at an iris side of the border; displaying, transmitting, communicating or digitally storing or otherwise outputting the enhanced image or a further processed version, or combinations thereof; and wherein the method further comprises finding a border point as a maximum gradient point along a horizontal line through an upright eye, and growing the border including adding immediate neighboring points characterized by largest horizontal intensity gradients.