Talk:Red-eye effect

message: There is a little bit of red eye in this picture, yes, but is this the best example?  Albino rats have red eyes to begin with.  I wouldn't exactly call it the "red eye effect" lol.  Maybe somebody can move it to the red eye article?Brad219 (talk) 22:56, 17 August 2008 (UTC)
thread_title: Albino Rats

message: Anyone know why dead People don't have a red eye effect? THis could be a nice addition to the article...
....mostly because their eyes are closed. Also because dead people don't often feature in holiday photos (except in Rhyl), but mostly because there is no blood in the blood vessels behind the retina so you ought to get a grey-eye effect. Any examples out there ?
Mrs Trellis 09:46, 19 July 2005 (UTC)
thread_title:  Dead men show no Red Eye 

message: So, red eye is noticable in photographs because the pupil has not had time to shrink in response to the light?  Does this mean that lower levels of light also reflect back out of the eye from the retina, but we just don't notice it?  (Infrared is also brilliantly reflected by the eye, but we can't usually see infrared.)  I wonder, do other animals ever notice human eyes glowing under natural light; and do cats, for example, notice other cats' eyes glowing?  Can people use the light reflecting from their eyes like a flashlight?  Does the light reflected by the eye contribute to ambient surroundings?
:Yes, red reflection is normal but usually not perceptible.  Infrared usually is absorbed or radiated, but not reflected.  Human eyes do not have eyeshine, and other animals lack red-sensitive cones so do not see red well, so other animals probably do not see our eyes shining in this sense.  In some natural light conditions, even humans can see eyeshine in cats;  I am sure cats notice it. --Una Smith (talk) 17:14, 3 June 2008 (UTC)
thread_title:  glowing eyes 

message: The inset image of the cat incorrectly states that the red-eye effect in cats is not red.  Blue-eyed cats glow red and other eye colors glow green.  Odd-eyed whites, for example, glow red in one eye and green in the other. Greg  (Talk) 02:40, 1 January 2007 (UTC)
thread_title:  statement under inset cat image is wrong 

message: It would be good if someone draws a graphic showing how the light is reflected back in the direction it came from. --Apoc2400 04:16, 9 June 2007 (UTC)
thread_title:  Graphic would be nice 

message: I have been trying to determine the cause of my eye color in this photo:
http://photos-c.ak.facebook.com/photos-ak-sctm/v10/128/84/3210900/n3210900_30359310_8829.jpg
     Is this type of reflection common, am I some freak with a tapetum lucidium, or some other disease?
Why the green eye reflection?  —Preceding unsigned comment added by FlyingApe (talk • contribs) 17:14, 18 December 2007 (UTC)
replies: text: If it was just one photo, it is probably a fluke. If it happens in multiple photos, you may have a retinoblastoma, a kind of cancer.  —Preceding unsigned comment added by 76.118.216.61 (talk) 23:13, 11 February 2008 (UTC)
thread_title:  Speaking of Red and Green Eyes 

message: Why does a ringlight never seem to produce redeye? —Ben FrantzDale (talk) 12:30, 6 February 2008 (UTC)
thread_title:  Ringlight? 

message: Re eyeshine, the article currently states that red-eye effect "contributes to variation in the color of the reflected light from species to species."  Someone please cite a ref that shows red-eye effect contributes to the color of eyeshine.  Note that if such a contribution exists, then it can only exist in photographs, not in nature, because the red-eye effect is not perceptible in nature. --Una Smith (talk) 21:24, 2 June 2008 (UTC)
replies: text: --Una Smith (talk) 17:29, 4 June 2008 (UTC)
thread_title: Eyeshine

message: The red-eye effect is used in several computer-human interface applications.  A new section about this is needed in this article.  --Una Smith (talk) 17:29, 4 June 2008 (UTC)
thread_title: Applications

message: Don't you think it's useful for readers to add references to some specialized software for red eye removal?
Vista photo gallery, Gimp etc are general photo editors, but it's really convenient to use a software that targeted at the very red eye removal task.
If it's not appropriate to set direct links to such products (that would be really convenient for users who are looking for a red eye solution) it is a good idea to add information about names of these products.
--ThePPK (talk) 11:52, 10 June 2008 (UTC)
replies: text: What Wikipedia is not is a link farm to commercial sites. There are already many search engines that will offer to sell hundreds of applications for removing red-eye from digital photographs. We don't need to use Wikipedia for promoting commercial products. If we did there would be endless disputes about the merits and de-merits of particular software solution. So no links and no products references. Velela (talk) 13:54, 10 June 2008 (UTC)
replies: text: "Really convenient" is a matter of opinion, and does not belong in an encyclopedia.  Open Directory is a good place to list products and links;  and a link to Open Directory would be okay. --Una Smith (talk) 13:59, 10 June 2008 (UTC)
thread_title:  Specialized red-eye removal software 

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thread_title: File:Motorola Milestone XT720 with Xenon flash and red eye strobe return system.jpg Nominated for Deletion

message: Okay, can we get some examples of the usage of red-eyes in internet memes, because we need some citations for this claim. Superkid761 (talk)  —Preceding undated comment added 12:57, 13 February 2019 (UTC)
thread_title:  Pop Culture Citations? 

message: Light-skinned people with blue eyes have relatively low melanin in the fundus and thus show a much stronger red-eye effect than dark-skinned people with brown eyes. The same holds for animals. The color of the iris itself is of virtually no importance for the red-eye effect.
At first sight, this is clearly contradictory. It says that people with blue eyes show a stronger effect than those with brown eyes. Then it says the colour of the iris is of no importance. Now I sense that the two statements may nevertheless both be true and just refer to different things, but if so the passage should be rephrased to make it clearer. 90.186.83.177 (talk) 08:16, 9 June 2021 (UTC)
thread_title:  Contradiction 

message: See page 374 in Light and Color in the Outdoors, § 268: Cat's eyes at night. Minnaert: animals such as dogs, sheep, rabbits, and horses have luminous eyes, but human beings have not. DannyCaes (talk) 14:31, 15 August 2021 (UTC)
thread_title:  M. G. J. Minnaert didn't knew about the red-eye effect in human eyes

message: What is everybodys red eye picture ? SuperBeast24 (talk) 17:09, 28 December 2023 (UTC)
thread_title:  best red eye photo ?