red eye definition of red eye in the Free Online Encyclopedia.

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)

Mentioned in	?		References in classic literature	?		Encyclopedia browser	?		Full browser	?
No references found	It got thicker and thicker, till it seemed as if it became concentrated into a sort of pillar of cloud in the room, through the top of which I could see the light of the gas shining like a red eye. Dracula by Stoker, Bram View in context That of the serf, or bondsman, was sad and sullen; his aspect was bent on the ground with an appearance of deep dejection, which might be almost construed into apathy, had not the fire which occasionally sparkled in his red eye manifested that there slumbered, under the appearance of sullen despondency, a sense of oppression, and a disposition to resistance. Ivanhoe by Scott, Walter View in context At last, in my despair, I saw a little door in the roof, and on poking it open, a red eye appeared, and a beery voice said. Little Women by Alcott, Louisa May View in context	Red Brigades red bug red carnation red cedar red charcoal red chrysanthemum red clay Red Clay State Historic Park Red Cloud red clover red cobalt red copper ore Red Coral Red Crescent Red Cross Red Danish Cattle red death, the Red Deer red dwarf star Red Eagle red earth Red Earth Native American Cultural Festival Red Earths red eft Red Estonian Cattle red eye Red Eyebrow Rebellion Red Eyebrows red fir red flag Red Flannel Festival Red Fleet State Park red fox Red Friday red giant red giant star red giant tip red glass Red Gold Red Guard Red Guards red gum red hat Red Haw State Park red heart red hematite Red Hill Patrick Henry National Memorial Red Hills State Park Red Hundreds Red International of Trade Unions red iron ore	red dye red dye red dye Red Eagle Red Earth Red Earth Red Earth Native American Cultural Festival Red Earth Trading Company Red Earths Red ebony Red Edge Inflection Point red eft red eft red eft Red Eléctrica de España Red Electrica Española red elm red elm red elm Red Eminence Red Eminence Red Emma red emperor Red empress Red Ensign red ensigns Red envelope Red Envelope Entertainment Red Equipment Area Red Estonian Cattle red eye Red Eye (newspaper) Red Eye (newspaper) red eye removal red eye removal red eye removal Red Eyebrow Rebellion Red Eyebrows Red eyed tree frog Red Eyes Darkness Dragon Red Faction Red Faction 2 Red Faction Game Tracker Red Faction: Guerilla red factor Red Fades to Black red false mallow Red fermented rice Red Fern Theatre Company red fever Red figure Red figure pottery Red figure style red filter red filter red filter red filter red filter red fir red fir red fir

Mentioned in

References in classic literature

Encyclopedia browser

Full browser

No references found

It got thicker and thicker, till it seemed as if it became concentrated into a sort of pillar of cloud in the room, through the top of which I could see the light of the gas shining like a red eye.

Dracula by Stoker, Bram View in context

That of the serf, or bondsman, was sad and sullen; his aspect was bent on the ground with an appearance of deep dejection, which might be almost construed into apathy, had not the fire which occasionally sparkled in his red eye manifested that there slumbered, under the appearance of sullen despondency, a sense of oppression, and a disposition to resistance.

Ivanhoe by Scott, Walter View in context

At last, in my despair, I saw a little door in the roof, and on poking it open, a red eye appeared, and a beery voice said.

Little Women by Alcott, Louisa May View in context

red dye
red dye
red dye
Red Eagle
Red Earth
Red Earth
Red Earth Native American Cultural Festival
Red Earth Trading Company
Red Earths
Red ebony
Red Edge Inflection Point
red eft
red eft
red eft
Red Eléctrica de España
Red Electrica Española
red elm
red elm
red elm
Red Eminence
Red Eminence
Red Emma
red emperor
Red empress
Red Ensign
red ensigns
Red envelope
Red Envelope Entertainment
Red Equipment Area
Red Estonian Cattle

red eye

Red Eye (newspaper)
Red Eye (newspaper)
red eye removal
red eye removal
red eye removal
Red Eyebrow Rebellion
Red Eyebrows
Red eyed tree frog
Red Eyes Darkness Dragon
Red Faction
Red Faction 2
Red Faction Game Tracker
Red Faction: Guerilla
red factor
Red Fades to Black
red false mallow
Red fermented rice
Red Fern Theatre Company
red fever
Red figure
Red figure pottery
Red figure style
red filter
red filter
red filter
red filter
red filter
red fir
red fir
red fir