1. A method for ascertaining the age class of a human subject in a digital image, the human subject having a redeye defect pair, each defect of the redeye defect pair having one or more redeye defect pixels, the method comprising using a processor to perform the steps of: identifying two regions of redeye defect pixels corresponding to the redeye defect pair; measuring a distance between said regions; determining a region size based upon a size of at least one of said regions; determining a normalized region size by forming a ratio involving said region size and said distance; and determining an age class responsive to the normalized region size.