Guess the age through photos of red eyes

The Kodak camera maker is adopting a technology - which automatically adjusts the red-eye effect of digital photos - to determine the age of a person. This can be bad news for those who want to hide their age.

A team from the company's laboratory in Rochester, New York, said the technology could provide a quick and easy way to check someone's date of birth.

The red-eye effect occurs when the pupil of a person opens up allowing the light of the camera's light to reflect on their retina. Red eye correction software will analyze the image, look for the red dots in the center of the face, and automatically blur it to remove the effect.

Kodak's patent refers to a previous study, in which there is a link between life span and pupil interaction with light. As an older person, their pupils have difficulty opening to absorb light.

Kodak claims that an age recognition system can take a person's identity photo taken at a distance in controlled light. The software then measures the size of the red dots in their eyes and determines the pupil's magnification, finally giving an estimate of the age.

Although this patent does not indicate the accuracy of the system, the accuracy estimate can be increased if combined with the examination of wrinkles and hair color in the image.

T. An