red eye


Also found in: Dictionary, Thesaurus, Medical, Legal, Idioms, Wikipedia.
Related to red eye: Pink eye

red eye

The appearance of red eyes on people and animals when pictures are taken with flash. In dimly lit environments, the eye's iris opens to let in more light. The light from the flash unit reflects back from the retina, which is full of blood vessels; hence, the red look.

Pre-Flash
Some cameras have an option that produces a flash of light just ahead of the actual flash. The first flash causes the iris to close, eliminating some of the reflection.

Automatic and Manual Removal
Some digital cameras have red eye removal, which removes the red before the image is stored in the camera's flash memory. The removal may be automatic or an option that can be enabled and disabled. However, all photo editing programs have red eye removal. It requires that the user highlight the area around the eyes and either select a default removal function or adjust the amount of reduction. Some programs offer options for replacing the red with a color, which is helpful for pictures where the eyes are an important focal point.

The red can always be removed manually in an image editor by carefully replacing the red with the correct eye color. Although this takes a fair amount of practice to do it well, the results are often the best.


Red Eye Removal
In Nabocorp's excellent cam2pc photo editor, red eye removal is accomplished by sliding a lever to the desired result using the adjustment in the dialog box at the bottom left. (Images courtesy of Nabocorp Softwares, www.nabocorp.com)


Red Eye Removal
In Nabocorp's excellent cam2pc photo editor, red eye removal is accomplished by sliding a lever to the desired result using the adjustment in the dialog box at the bottom left. (Images courtesy of Nabocorp Softwares, www.nabocorp.com)
References in periodicals archive ?
Red Eye Express will serve products from Columbia-based Loveland Coffee and Charleston Tea Plantation along with pastries from Crust Bakery, located in Rosewood.
The most commonly reported symptom was eye injury 368(39.7%), followed by red eye, painful eye, swollen eyes, reduced vision, itching, watery eyes, eye discharge and burning eyes (Table-2).
A 35-year-old woman presents with a painful red eye for two days.
Although Hirt had already left Red Eye by the time Twitter's popularity rose, she watched Red Eye react and shift its target to reach that audience.
The Red Eye from Red CCTV is a detector that makes a difference, the wide-angle camera records a 10 second video, this video is sent to the monitoring station where agents can watch in real time, eliminating uncertainty.
In the last ten days, increased cases were reportedly recorded in Juba Teaching Hospital (JTH), with United Nations clinics (UNDP and UNMIS) also reporting red eye cases among its staff.
This article describes a pediatric clinical case presentation of red eye. In addition, a discussion of the most common differential diagnoses for the presentation of red eye and its treatment is provided.
Covering Photoshop essentials in general, including Photoshop 7 and Photoshop CS in particular, "Digital Photography" addresses simple and complex retouching techniques, removing 'red eye' from images, cloning, hand tinting, restoring old photographs, photo montages, digital painting, adding text to images, special effects, storing images, creating photo essays, printing, file size, composition, color theory, bracketing, lighting, backgrounding, and so much more.
FotoNation embedded red-eye reduction technology finds and digitally corrects red eye caused by a reflection of the flash off the cornea of the eye.
Indoor flash photos are often marred by "red eye," which is caused by the reflection of the flash off the eye's retina.
While I may grumble about the red eye flights back from Las Vegas or the clothes that need ironing every time I unpack my bag, the reality is that meeting our readers and advertisers face-to-face has yet to be topped by an e-mail note.
Though he's never taken an acting class in his life, Murphy landed the first role he ever auditioned for--in an acclaimed play called Disco Pigs--and set aside dreams of playing rock and roll for a career that has included Cold Mountain and two big hits this summer--the blockbuster Batman Begins and the Wes Craven thriller Red Eye.