Red-Eye EffectThe red-eye effect (often simply known as "red eye") is the appearance of a person's or animal's pupils appearing red when illuminated by a bright light, generally under low ambient lighting conditions. While it is possible (but rare) to notice this effect simply by observation, the effect tends to be most commonly observed in photographs and digital photographs taken using compact cameras where a photographic flash is close to the lens.
If the red-eye effect is undesired (as is usually the case), it is best avoided at the time of taking the photograph, rather than corrected digitally later. Some photographic techniques which can be used to avoid the red eye-effect include:
Here is a photograph showing the red-eye effect:
Here is the photograph after removing the red-eye effect using the built-in red-eye removal tool in Corel PhotoPaint:
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