The red-eye effect is a well-known problem in photography. It is often seen in amateur shots taken with a built-in flash, but the problem is also well known to professional photographers. This effect is caused by the reflection of the blood vessels in the retina, usually when a strong and sudden light strikes the eye. Red eye is a function of at least three things: • Ambient light level. Low level causes the subject’s pupil to open wider to admit more light, exposing the retina. © 2009 by Taylor & Francis Group, LLC
Schettini, R., Gasparini, F. (2009). Automatic red-eye removal for digital photography. In Lukac, R (a cura di), Single-Sensor Imaging: Methods and Applications For Digital Cameras (pp. 429-457). CRC Press.
Automatic red-eye removal for digital photography
Schettini, R;Gasparini, F
2009
Abstract
The red-eye effect is a well-known problem in photography. It is often seen in amateur shots taken with a built-in flash, but the problem is also well known to professional photographers. This effect is caused by the reflection of the blood vessels in the retina, usually when a strong and sudden light strikes the eye. Red eye is a function of at least three things: • Ambient light level. Low level causes the subject’s pupil to open wider to admit more light, exposing the retina. © 2009 by Taylor & Francis Group, LLC
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