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Why are red eyes appearing in the flash photo and can this be fixed?

14/12/2021 by

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If earlier photography was the lot of the elite – the technique was expensive, and the process of developing films was complex and painstaking, today numerous gadgets have learned how to take pictures. And our smartphone, with which we part, it seems, only for the time of sleep, turned out to be an excellent camera. But, photographing numerous relatives and friends, you can find an unpleasant effect in the pictures – red eyes. It is not entirely clear why this happens and how such an optical artifact can be avoided.

♥ ON TOPIC: How to automatically improve photo quality on iPhone and iPad.

Why do red eyes appear in the photo when shooting with a flash?

The appearance of red circles right in the photograph on the pupil of a person is understandable.

When we take a picture in low light conditions or at night, the flash is activated. The camera captures the reflection of its light from the bottom of the human eye, which are the choroid and the retina with its blood vessels.

To understand what is happening, you need to remember the principle of the human eye. First, light hits the cornea, passing through it and then through the pupil. Then the rays are focused by the lens and directed to the retina. This inner lining of the eye has photoreceptor cells, which are precisely responsible for the perception of light by us, converting the visible part of its spectrum into nerve impulses. With the help of the optic nerves, they enter the brain, which collects signals together and forms a whole picture from them. In fact, the principle of our eyes is not much different from the operation of a camera. There, the role of transparent structures of the eye is played by a transparent lens. And the control of the transmitted light is not the pupil, but the diaphragm. The sensitive element (film) is engaged in fixing the image, while in the human organ this function is given to the retina.

Eye structure

If there is poor lighting in the room, the pupil begins to dilate to capture more light. At the moment the camera flashes, the pupil naturally narrows – there is a lot of light. But our eye simply does not have time to fully and quickly respond to what is happening. This leads to the fact that too much light enters the fundus, which is reflected from the retina and its vessels. The lens, an essentially biconvex lens, captures these reflected rays, preventing them from scattering throughout the eye. This leads to the color of the pupil and its iris in a rich red color, but the color of the proteins usually remains the same. It is this reflection that the photograph captures. The red color is easy to explain – the light comes from the blood vessels of the fundus. We know that the reflected rays form the color of the object. And since the fundus reflects rays in the red range, then this is exactly what the camera matrix captures.

Why do red eyes appear in pictures?

The saturation of the red color of the pupils can be different, it depends on the size of the pupil and the genetic characteristics of the lens. The wider the pupil opens when the flash fires, the more red-eye appears in photographs. This is especially evident in the pictures of children. The fact is that at the age of 2 to 10 years in a person, the pupil size is 4-5 mm. Later, up to 50-60 years, the pupil size is already 3-4 mm. In old age, in humans, the pupil further reduces its diameter, up to 1-1.5 mm. Moreover, with age, for a number of reasons, the shape of the lens also changes, and hence its refractive ability.

The intensity of the color of the fundus also plays a role. It is influenced by the content of the coloring pigment in the retina and in the vascular membrane. These parameters are individual for each person. That is why the effect manifests itself in different ways in different people – in some it is a red speck, while in others the entire pupil is intensely stained. This effect works best when shooting in the darkest environments. If a person is photographed even with a flash in a well-lit place, then the pupil itself is constricted, less light enters the eye and the unwanted effect is almost not manifested.

♥ ON TOPIC: Why does an iPhone have 3 cameras: what is each one for and how to switch?

How to take photos without red eye?

Now that we know why red eyes appear in photographs, it is helpful to use this information to eliminate or avoid the effect. Here are some practical tips to give:

  • The subject should not look directly into the lens. If the gaze is not directed at the camera, then the flash light does not enter the eyes at a right angle, this will noticeably reduce the manifestation of the effect. It will be optimal to direct your gaze to the light areas of the room.
  • It is best to improve the lighting in the shooting room. The less light, the more the pupil will dilate with the flash, which will lead to the appearance of red eyes in the picture.
  • Experienced photographers arrange lighting fixtures so that no light enters the lens or reflections from the eyes.
  • Many cameras have a red-eye prevention function. It works on the basis of a blinking light. First, the device fires warning flashes, which causes the pupil to constrict and allow less light to pass through at the moment the picture is taken.
  • You can remove red eyes with a graphics application. The computer can easily suggest tools for correcting photos, making the eyes look more natural.
  • If the photographs have already been printed, then they can also be corrected using a special pencil. It is usually sold in a photographic store and has the ability to hide red eyes.
  • Modern smartphones on the popular Android and iOS platforms have a number of applications and standard tools that are specifically designed to detect red eyes in photos and remove the effect.

How to remove red eyes from photos on iPhone or iPad without additional applications

How to remove red eyes from photos on iPhone or iPad without additional applications

♥ ON TOPIC: DMD Clone, or how to create a double in a photo (clone objects) in an iPhone.

Red eyes – basic questions

For amateur photographers, red eyes can be an unpleasant surprise. This effect inevitably raises a number of questions, even if one understands its essence.

Why don’t all people have red eyes in group shots? There can be several explanations for this effect. But the simplest thing seems to be that just not all people were looking directly into the camera, so they didn’t have red eyes. This option is also possible – the person being filmed may be in a state of alcoholic intoxication, which slows down his reaction. The pupils do not react to the flash as quickly as in the normal state. As a result, the red-eye effect is especially pronounced.

Why is only one eye red in the photo? This situation is possible if only one eye was looking directly into the camera lens, while the other was looking at the device from a different angle. This made it impossible to catch the light reflected from the retina. There are rare cases when the appearance of one red eye in the image is associated with the presence of a cataract or tumor in the other eye. Constant observation of such an effect in the picture may be the reason for contacting an ophthalmologist.

Why is only one eye red in the photo?

If the person in every photo has red eyes, is this evidence of a health problem? You shouldn’t worry ahead of time. Most likely, he just chooses the same pose, looking directly into the camera. The phenomenon already described by us occurs, which gives rise to red eyes in the picture. It may be advisable to look away from the lens, focusing on illuminated objects or surfaces. This will help narrow the pupils and reduce the likelihood of an effect. Some people naturally have a larger pupil than others. Consequently, it increases the likelihood of red-eye appearing when shooting. But in smokers and alcohol abusers, the pupils become smaller. It is known that they can expand when the thyroid gland is overactive, and narrow when there is a lack of thyroid hormones. There are other health-related changes in the pupil. Its sharp narrowing is caused by increased intracranial pressure or inflammation of the meninges. In advanced stages, the pupils, on the contrary, dilate greatly. A change in the color of the pupil of only one eye may indicate inflammation of the corresponding half of the brain. There is another reason for the appearance of red eyes in photographs – the low content of melanin. It is known that people with light eyes are more likely to appear in photographs with red eyes.

Is it normal for a baby to appear in photographs with red eyes? This is a common occurrence for children. It indicates that the retina is healthy and healthy. And in childhood, the effect manifests itself more often than in adults. But the appearance of only one red eye can tell about the presence of strabismus in a child. One or both eyes deviate on direct gaze. If the child’s red eyes do not appear in the picture, this may also indicate a certain disease. If the anomalies in the child’s photographs are repeated often, it is worth contacting an ophthalmologist.

Why can eyes look different in pictures of animals? Indeed, when photographing animals: horses, dogs, cats, etc. their eyes in the photo can get different shades. The fact is that many creatures have a specific layer in the retina that provides visibility in low light conditions and even in complete darkness. Reflection of light from this surface can cause the eyes to appear yellow, blue, green, or white. It all depends on the angle of reflection of the flash unit. And in some animals, you don’t need to use a camera to observe such an effect – the eyes already glow in the dark, reflecting even a weak light. There are animals that prefer a daytime lifestyle, as well as some breeds of cats and dogs that do not have such a layer in the eye. Then the red-eye effect appears, just like in humans.

Why do the eyes look different in pictures of animals?

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Filed Under: Uncategorized Tagged With: appearing, eyes, fixed, flash, photo, red

Remove red eyes in a photo in 1 second on iPhone or iPad without installing applications

02/12/2021 by

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The problem is as old as the photography industry itself, unpleasant, but solved long ago, and in more than one way. The function of eliminating “red eyes” in the eyes of people in front of the lens of a mobile communicator is available in almost every thematic application, both for iOS and for Android. And the most convenient version of its implementation from Apple itself is present in the standard Photo application on the iPhone or iPad.

No add-ons, complex filters, sophisticated algorithms – everything is simple. This function is integrated into the application interface and is available by default from the central window.

♥ ON TOPIC: ProRAW in the iPhone camera: what it is, how to turn it on, use it + sample photos.

How to remove red eyes from a photo using the Photos app on iPhone and iPad

It is worth noting that the locations of the menus and icons may differ depending on the iOS version.

1… Run the app Photo, open the frame you are looking for.

2… Click the button “Edit”located on the top right panel.

3… The red-eye effect is one of the most common, so the button to eliminate it is located on the front panel. It is located at the top and looks like a crossed out eye.

Please note that this button may not be present in the photo parameters if it does not show a person with a red-eye effect.

How to remove red eyes from photos on iPhone or iPad without additional applications

4… Tap the red circles in the original image one at a time, watching them fade away to more natural colors. For a more accurate “hit in the eye”, the image can be slightly zoomed in.

How to remove red eyes from photos on iPhone or iPad without additional applications

5… At the end of the procedure, press “Ready»In the bottom menu.

How to remove red eyes from photos on iPhone or iPad without additional applications

How to remove red eyes from photos on iPhone or iPad without additional applications

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Filed Under: Uncategorized Tagged With: applications, eyes, installing, iPad, iPhone, photo, red, remove

DISCOUNT (459p → 29p) Review of the game Edna & Harvey: Harvey’s New Eyes for iPhone and iPad

06/09/2021 by ALOK DAS

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Such games do not appear out of nowhere. First of all, beautifully drawn stories with the right characters and classic behavior, the separation of characters into good and bad, gradually went out of fashion. This can be seen even in those cartoons that have been popular in recent years not only among children, by the way. “Rick and Morty”, “Gravity Falls”, “Hilda” and the like easily found their admirer. But such a trend originated back in the 2000s, thanks at least to the animated series about the little dead girl Lenore. The heroine got stuck between worlds and lost her sense of reality. In almost every episode, she does something terrible or even kills someone. As it turned out, the society was not frightened by this.

Download Edna & Harvey: Harvey’s New Eyes for iPhone and iPad (App Store)

In the late 2000s, a certain Edna continued the baton. You may not have heard of her before. Meanwhile, the quest Edna & Harvey: Breakout became an event in its time. The main character is a patient of a psychiatric hospital who skillfully hides behind her schizophrenia for the sake of bullying neighbors and comrades. Such a deliberate abnormality frightened, embarrassed, but at the same time attracted. In 2012, a sequel to the popular game appeared. In Edna & Harvey: Harvey’s New Eyes, the abnormality has not diminished, although the heroine has changed. But this game also caught on, because being respectable and correct is boring for us, why not try to have fun?

Game review Edna & Harvey: Harvey's New Eyes

Fans of crazy Edna may get upset at first, she is a minor character in this game. We will not be allowed to enjoy her schizophrenia. But there will be a lot of disgrace in the game, and now Lily will be responsible for them. This fragile blonde girl might appear to be the opposite of Edna. Her disheveled hair, wild eyes and hospital gown are contrasted with classic pigtails, stockings, a cute purple bow. In a word – Lily is a classic diligent student, from whom you don’t expect leprosy, let alone a stream of crazy trash. Is this a sequel to Edna & Harvey?

Game review Edna & Harvey: Harvey's New Eyes

Yes, and our heroes turned out to be in the monastery school. Even if the Mother Superior is somehow nervous – but this is normal after all. The pupils are quite ordinary outwardly guys, Lily herself is looking for a treasure in the flower bed. Isn’t it an idyll? But everything changes with the appearance of a new psychiatrist at the school, Edna’s acquaintance, Dr. Marcel. His former patient contemplates an escape, calling for help from a new girlfriend. And Lily herself, through hypnosis, received a whole portion of prohibitions from the doctor: do not lie, do not play with fire, do not drink alcohol, obey elders, etc. But she already saw the world through rose-colored glasses and seemed to be the standard of education. And the girl cannot even contradict anyone, it is no coincidence that the game designers decided not to draw Lily’s mouth – why is he quiet? The girl does not put up with the shackles imposed on her – at first she can bypass one of the taboos at a time, but gradually, plunging into the subconscious, it will be possible to get rid of the inhibitions. And this will only untie his hands!

Game review Edna & Harvey: Harvey's New Eyes

♥ BY THEME: 100 best games for iPhone and iPad according to the version of Yablyk.

It soon turns out that the world around the girls is not that pink at all. Here, too, there are many bright characters that are not inferior in color to the inhabitants of the psychiatric hospital. Teachers are sheer tyrants, students are suckers and hooligans, and there is also a mummer wandering around, a worker with a jackhammer in the church … And this we do not touch on those demons that live in Lily’s head. What is a little girl without her own “cockroaches in the head”?

Game review Edna & Harvey: Harvey's New Eyes

Obedient to the will of adults and her friend, Lily obediently fulfills their requests. But who knew that she would become the most brutal and dangerous killer in this seemingly quiet place? And is it Lily’s fault that events are unfolding this way, and she is simply given incorrect instructions? Need to get rid of termites on your tree? Ready! Well, the fact that now the termites ate the little boy and moved to the school yard – sorry, it happened! The order to remove the firecrackers from the stone gargoyle is done! Oh, did the gargoyle fall on a couple in love? It happens…

Game review Edna & Harvey: Harvey's New Eyes

The game will not seem difficult. There is no system inherent in most quests with numerous items in the inventory, which you just need to think of where to attach. The participants in the action themselves constantly hint with their phrases what they expect from us. And the voice-over narrator sometimes gives a hint. He plays a significant role in creating the color of the game, because some phrases just want to be parsed into quotes. I must say that the classic quests have changed recently, riddles have become clear to the average player – this is the fashion now. In Edna & Harvey: Harvey’s New Eyes, variety tries to provide scattered puzzles, although it’s a stretch to justify them. Indeed, how did the Templars love Sudoku? And isn’t it too cruel to deceive color blind people with repainted vegetables even for such a crazy game?

Game review Edna & Harvey: Harvey's New Eyes

Don’t take Edna & Harvey: Harvey’s New Eyes seriously. This is a classic tragicomedy, richly seasoned with black humor. You can laugh at the same scene, or you can feel sad. Lily is not a villain at all, but simply a victim of circumstance. She does not even notice what she is doing, because her “pink glasses” are gnomes, carefully erasing traces of blood. And everything that happens does not frighten those around, even the abbess talks to the hanged corpse, without noticing it. There are no remains in the vicinity, and no one is looking for the missing – such is the world here. And again, let’s remember Lenore, with whom, most likely, Lily was written off – all the same natural naivety behind which destructive power lies. And the girl’s hypnotic trance takes us to other worlds. And you can also remember the classic Alice Lewis Carroll, which is quite suitable for the role of the founder of the genre of “strange quiet girls.” It’s just that modern Alice looks different, and the environment is different.

Game review Edna & Harvey: Harvey's New Eyes

As for the design of the game, the drawing of the characters gives a good understanding of their essence. Lily has no mouth, the abbess has an unhealthy blue skin color, an inner demon with a knife in her head … In a word, you will not see a classic fairy-tale world with soft lines here. But there is frankly not enough music, but here the caution is understandable – it is difficult to find something suitable for the madness that is happening.

Despite all of Lily’s antics, her story is not so simple. The creators unwittingly hint about the social consequences of the suppression of the personality of just one individual. And seemingly cute girls with a big bow in their heads can have anything going on. The developers did not particularly bother with the endings – there are only three options, which differ in essence, in a few words of the narrator. If you try, you can even hear the replica of the main character. Edna & Harvey: Harvey’s New Eyes is a great atmosphere of black humor, funny dialogues and actions of a difficult heroine.

Download Edna & Harvey: Harvey’s New Eyes for iPhone and iPad (App Store)

See also:

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Filed Under: Uncategorized Tagged With: 29p, 459p, DISCOUNT, Edna, eyes, game, Harvey, Harveys, iPad, iPhone, review

The Eyes of Ara game for iPhone and iPad is a mesmerizing mystery in the style of Myst and The Room

19/05/2021 by ALOK DAS

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It’s hard not to draw parallels between the well-known classic Myst and the new project The Eyes of Ara from the Australian indie studio 100 Stones Interactive, because the action of the latter takes place in the same way on an isolated, abandoned island.

Download The Eyes of Ara for iPhone and iPad (App Store)

This is a first-person game with riddles and a mysterious story, where the supernatural is combined with fantasy and fantasy. In general, it is very similar to the phenomenon of the 1990s of the last century.

“For me, Myst turned out to be a mesmerizing game, unlike anything I’ve played before. I tried to reproduce that feeling of wonder and contemplative exploration, ”said The Eyes of Ara developer Ben Drosty.

The Eyes of Ara game for iPhone and iPad

And the result was quite successful. The Eyes of Ara shows a world where the player has to wander through the dusty corridors of a huge castle in an attempt to piece together plot and story fragments from notes and books on astronomy and astrology left by previous inhabitants.

The Eyes of Ara game for iPhone and iPad

However, The Eyes of Ara does not repeat Myst in everything, which becomes clear at the very beginning of the game. Fans of Myst will be pleasantly surprised by the straightforward and intuitive puzzles. Games in this style often plunge players into a confusing world, where it takes quite a lot of time to adapt.

“I really wanted to get away from the goofy design of old games. Since then, the gaming industry has advanced significantly, and I wanted to embody the modern design and theories that have been meticulously developed over the past few decades, ”explained Driste.

The Eyes of Ara game for iPhone and iPad

Instead of wandering through huge locations, the opening scenes of The Eyes of Ara are somewhat reminiscent of the classic Zelda. For example, you might get stuck in a room where you have to explore and experiment with your surroundings to figure out how to proceed. This design will surely appeal to those who usually find it difficult to get complex, multi-level puzzles.

It is worth noting that the first moments of the game will seem simple only to those who still remember the archaic times when they had to stare at the CRT monitor for hours until the newfangled CD-ROM drive finishes doing its magic and immerses players in a bright, confusing digital world.

ON THIS TOPIC: The best games for iPhone and iPad according to the Yablyk editorial board: 70 most-most.

The Eyes of Ara game for iPhone and iPad

But that feeling will quickly disappear when the first large play areas appear. This is where you will realize that you have previously dealt with the tutorial part showing different ways of interacting with the environment through puzzles. In this, the game resembles a cautious immersion in hot water – by the time the real “heat” begins, you will be ready for any secrets.

As you progress, the difficulty of the game also increases. You will have to solve numerous puzzles, look for various clues that will help you understand what the castle was used for … and what The Eyes of Ara is all about. You will have assistants – seemingly intelligent blue lights wandering around the castle, which indicate the next clue or mysterious device.

The Eyes of Ara game for iPhone and iPad

The ambiguity of the prompts and the many gaps only spur curiosity, as the developer intended. “One of the main themes of The Eyes of Ara is the unreliability of incomplete information and the need to find the truth. So all the fragments of the legend, scattered around the world, not only allow you to form a complete picture, but also look at history from different angles. All information is incomplete, and in some places even contradictory, ”the developer emphasizes.

In other words, the game is pretty intense. The Eyes of Ara project is the brainchild of one person, on which the author worked for three years. The result is really amazing, especially the accessibility of the game – the puzzles are not so abstract as to lose all meaning, and the riddles do not enter into a stupor with their number.

The Eyes of Ara game for iPhone and iPad

“There is something about these classic puzzles that gives me real pleasure, as opposed to more abstract, purely mental exercises. I enjoy exploring real space and learning how the pieces fit together. I think this is partly what makes them universal. It doesn’t matter if you solve these puzzles in-game, on paper, in an escape room, or even by watching the hero of the film on the screen. They are based on human experience and problem solving, and we can enjoy them regardless of the proposed form, ”said Drosty.

The Eyes of Ara game for iPhone and iPad

Exploring the environment while encountering something strange and surprising is a really fun process, but, in addition to the story and puzzles, The Eyes of Ara has enough small touches that connect the world and the objects in it. In the nineties, games like this were mostly static, but thanks to the 3D environment The Eyes of Ara feels very modern.

The Eyes of Ara is available in the App Store at a price of 449 rubles. To download the app, you need an iPhone (at least 5s), iPad, or iPod touch (6th generation) with iOS 9.0 or later. There is a localization into Russian.

Download The Eyes of Ara for iPhone and iPad (App Store)

In the meantime, there is no need to worry about it. ”

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Filed Under: Uncategorized Tagged With: Ara, eyes, game, iPad, iPhone, mesmerizing, Myst, mystery, Room, style

Smartphones, tablets, PCs and TVs are not harmful to a child’s eyes on one condition

06/01/2021 by ALOK DAS

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Despite the widespread belief that the main reason for the development of myopia in children is an unlimited time at the TV or computer games, in fact, the decisive factor in the onset of the disease turned out to be lack of natural light… An article on this issue was published by the authoritative publication ScienceDaily.

♥ BY TOPIC: Why use Night Shift on iPhone – a scientific explanation.

Ophthalmologist Scott Reid has been studying the causes of myopia in children for a long time. According to a report he presented at a conference in Australia, children’s eyesight suffers mainly from a lack of natural light. PCs, mobile gadgets and other equipment are only an indirect cause of the development of the disease.

“We have not received confirmation of the assumption that myopia in children develops due to a long time spent in front of TV or PC screens. In this case, the technique simply takes away from the child the time that he could spend playing on the street. And because of the constant stay in the room, children experience lack of natural light“- says Scott Reed.

The doctor also noted that for prevention, as well as for the treatment of myopia, children need to be at least two hours a day in the fresh air under natural light. However, the results of this study cannot be regarded as evidence that PCs and televisions do not negatively affect a child’s vision – after all, the report deals specifically with myopia.

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Filed Under: Uncategorized Tagged With: childs, condition, eyes, harmful, PCs, smartphones, tablets, TVs

Why are red eyes appearing in the flash photo and can this be fixed?

06/01/2021 by ALOK DAS

[ad_1]

If earlier photography was the lot of the elite – the technique was expensive, and the process of developing films was complex and painstaking, today numerous gadgets have learned how to take pictures. And our smartphone, with which we part, it seems, only for the time of sleep, turned out to be an excellent camera. But, photographing numerous relatives and friends, you can find an unpleasant effect in the pictures – red eyes. It is not entirely clear why this happens and how such an optical artifact can be avoided.

♥ BY TOPIC: How to automatically improve photo quality on iPhone and iPad.

Why do red eyes appear in the photo when shooting with a flash?

The appearance of red circles directly in the photograph on the pupil of a person is understandable.

When we take a picture in low light conditions or at night, the flash is activated. The camera captures the reflection of its light from the bottom of the human eye, which are the choroid and the retina with its blood vessels.

To understand what is happening, you need to remember the principle of the human eye. First, light hits the cornea, passing through it and then through the pupil. Then the rays are focused by the lens and directed to the retina. This inner lining of the eye has photoreceptor cells, which are precisely responsible for the perception of light by us, converting the visible part of its spectrum into nerve impulses. With the help of the optic nerves, they enter the brain, which collects signals together and forms a whole picture from them. In fact, the principle of our eye is not much different from that of a camera. There the role of transparent structures of the eye is played by a transparent lens. And the control of the transmitted light is not the pupil, but the diaphragm. The image is fixed by a sensitive element (film), while in the human organ this function is given to the retina.

Eye structure

If there is poor lighting in the room, the pupil begins to dilate to catch more light. At the moment the camera flashes, the pupil naturally narrows – there is a lot of light. But our eye simply does not have time to fully and quickly respond to what is happening. This leads to the fact that too much light enters the fundus, which is reflected from the retina and its vessels. The lens, an essentially biconvex lens, captures these reflected rays, preventing them from scattering throughout the eye. This leads to the color of the pupil and its iris in a rich red color, but the color of the proteins usually remains the same. It is this reflection that the photograph captures. The red color is easy to explain – the light comes from the blood vessels of the fundus. We know that the reflected rays form the color of the object. And since the fundus reflects rays in the red range, then this is exactly what the camera matrix captures.

Why do red eyes appear in pictures?

The saturation of the red color of the pupils can be different, it depends on the size of the pupil and the genetic characteristics of the lens. The wider the pupil opens when the flash fires, the more red-eye appears in photographs. This is especially evident in the pictures of children. The fact is that at the age of 2 to 10 years, a person has a pupil size of 4-5 mm. Later, up to 50-60 years, the pupil size is already 3-4 mm. In old age, in humans, the pupil decreases its diameter even more, up to 1-1.5 mm. Moreover, with age, for a number of reasons, the shape of the lens also changes, and hence its refractive ability.

The intensity of the color of the fundus also plays a role. It is influenced by the content of the coloring pigment in the retina and in the vascular membrane. These parameters are individual for each person. That is why the effect manifests itself in different ways in different people – in some it is a red speck, while in others the entire pupil is intensely stained. This effect works best when shooting in the darkest environments. If a person is photographed even with a flash in a well-lit place, then the pupil itself is narrowed, less light gets into the eye and the unwanted effect is almost not manifested.

♥ BY TOPIC: Why does an iPhone have 3 cameras: what is each one for and how to switch?

How to take photos without red eye?

Now that we know why red eyes appear in photographs, it is helpful to use this information to eliminate or avoid the effect. Here are some practical tips to give:

  • The subject should not look directly into the lens. If the gaze is not directed at the camera, the flash light does not enter the eyes at a right angle, this will noticeably reduce the manifestation of the effect. It will be optimal to direct your gaze to the light areas of the room.
  • It is best to improve the lighting in the shooting room. The less light, the more the pupil will dilate with the flash, which will lead to the appearance of red eyes in the picture.
  • Experienced photographers arrange lighting fixtures so that no light enters the lens and reflections off the eyes.
  • Many cameras have a red-eye prevention function. It works on the basis of a flashing light. First, the camera makes warning flashes, which causes the pupil to constrict and let less light pass through at the moment the picture is taken.
  • You can remove red-eye with graphics applications. The computer can easily suggest tools for correcting photos, making the eyes look more natural.
  • If the photographs have already been printed, then they can also be corrected using a special pencil. It is usually sold at a photography store and can hide red eyes.
  • Modern smartphones on the popular Android and iOS platforms have a number of applications and standard tools that are specifically designed to detect red eyes in photos and remove the effect.

How to remove red eyes from photos on iPhone or iPad without additional applications

How to remove red eyes from photos on iPhone or iPad without additional applications

♥ BY TOPIC: DMD Clone, or how to create a double in a photo (clone objects) in an iPhone.

Red eyes – basic questions

For amateur photographers, the appearance of red eyes can be an unpleasant surprise. This effect inevitably raises a number of questions, even if you understand its essence.

Why don’t all people have red eyes in group shots? There can be several explanations for this effect. But the simplest thing seems to be that just not all people were looking directly into the camera, so they did not have red eyes. This option is also possible – the person being filmed may be in a state of alcoholic intoxication, which slows down his reaction. The pupils do not react to the flash as quickly as in the normal state. As a result, the red-eye effect is especially pronounced.

Why is only one eye red in the photo? Such a situation is possible if only one eye was looking directly into the camera lens, while the other was looking at the device from a different angle. This made it impossible to catch the light reflected from the retina. There are rare cases when the appearance of one red eye in the image is associated with the presence of a cataract or tumor in the other eye. Constant observation of such an effect in the picture may become a reason for contacting an ophthalmologist.

Why is only one eye red in the photo?

If the person in every photo has red eyes, is this evidence of a health problem? You shouldn’t worry ahead of time. Most likely, he is just choosing the same pose, looking directly into the camera. The phenomenon already described by us occurs, which generates red eyes in the picture. It may be advisable to look away from the lens, focusing on illuminated objects or surfaces. This will help narrow the pupils and reduce the likelihood of an effect. Some people naturally have a larger pupil than others. Accordingly, it increases the likelihood of red-eye appearing when shooting. But in smokers and alcohol abusers, the pupils become smaller. It is known that they can expand when the thyroid gland is overactive, and narrow when there is a lack of thyroid hormones. There are other health-related changes in the pupil. Its sharp narrowing is caused by increased intracranial pressure or inflammation of the meninges. In advanced stages, the pupils, on the contrary, dilate greatly. A change in the color of the pupil of only one eye may indicate inflammation of the corresponding half of the brain. There is another reason for the appearance of red eyes in photographs – the low content of melanin. It is known that people with light eyes are more likely to appear in photographs with red eyes.

Is it normal for a child to appear in photographs with red eyes? This is a common occurrence for children. It indicates that the retina is healthy and healthy. And in childhood, the effect manifests itself more often than in adults. But the appearance of only one red eye can tell about the presence of strabismus in a child. One or both eyes deviate when looking directly. If the child’s red eyes do not appear in the picture, this may also indicate a certain disease. If abnormalities in the child’s photographs are repeated frequently, it is worth contacting an ophthalmologist.

Why can eyes look different in pictures of animals? Indeed, when photographing animals: horses, dogs, cats, etc. their eyes in the photo can get different shades. The fact is that many creatures have a specific layer in the retina, which provides visibility in low light conditions and even in complete darkness. Reflection of light from this surface can cause the eyes to appear yellow, blue, green, or white. It all depends on the angle of reflection of the flash unit. And in some animals, you don’t need to use a camera to observe such an effect – the eyes already glow in the dark, reflecting even a weak light. There are animals that prefer a daytime lifestyle, as well as some breeds of cats and dogs that do not have such a layer in the eye. Then the red-eye effect appears, just like in humans.

Why do the eyes look different in animal pictures?

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Filed Under: Uncategorized Tagged With: appearing, eyes, fixed, flash, photo, red

How to remove red eyes from photos on iPhone or iPad without additional applications

05/01/2021 by ALOK DAS

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The problem is as old as the photography industry itself, unpleasant, but solved long ago, and in more than one way. The function of eliminating “red eyes” in the eyes of people in front of the lens of a mobile communicator is available in almost every thematic application, both for iOS and Android. And the most convenient version of its implementation from Apple itself is present in the standard Photo application on the iPhone or iPad.

No add-ons, complex filters, sophisticated algorithms – everything is simple. This function is integrated into the application interface and is available by default from the central window.

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How to remove red eyes from a photo using the Photos app on iPhone and iPad

It’s worth noting that the locations of the menus and icons may vary depending on the iOS version.

one… Run the application Photo, open the frame you are looking for.

2… Click the button “Edit”located on the top right panel.

3… Red-eye effect is one of the most common, so the button to eliminate it is located on the front panel. It is located at the top and looks like a crossed out eye.

Please note that this button may not be included in the photo parameters if it does not show a person with a red-eye effect.

How to remove red eyes from photos on iPhone or iPad without additional applications

4… Tap the red circles in the original image one at a time, watching them fade away to more natural colors. For a more accurate “hit in the eye”, the image can be slightly zoomed in.

How to remove red eyes from photos on iPhone or iPad without additional applications

5… At the end of the procedure, press “Done»In the bottom menu.

How to remove red eyes from photos on iPhone or iPad without additional applications

How to remove red eyes from photos on iPhone or iPad without additional applications

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Filed Under: Uncategorized Tagged With: additional, applications, eyes, iPad, iPhone, photos, red, remove

How to hide lock screen notification text from prying eyes on iPhone or iPad

26/10/2020 by ALOK DAS

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Previewing notifications on iPhone and iPad is a very useful feature. However, if you wish not to display, for example, the text of the conversation from the notification on the lock screen, the function can be disabled.

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How to hide text in all lock screen notifications on iPhone or iPad

In order to disable the preview function in all notifications, you need in the application “Settings” open section “Notifications” and choose “Thumbnail Show”…

How to hide lock screen notification text from prying eyes on iPhone or iPad

There are three options here – “Is always”, “No blocking” and “Never”…

How to hide lock screen notification text from prying eyes on iPhone or iPadBy default in iOS the option is activated “Is always”… If you do not share confidential information in instant messengers, e-mail or SMS and are not afraid that someone outside will see the contents of your messages, you can safely leave it enabled. Using the function “Raise to activate”, you can read the message directly from the screen without having to press anything.

If in emails or messages you discuss topics that you would like to hide from prying eyes, it is better to choose the option “Never”… In this case, you will only receive notifications that a message has been delivered to you in a specific application.

How to hide lock screen notification text from prying eyes on iPhone or iPad

Option “No blocking” hides the content of notifications from the lock screen, however, if the iPhone is unlocked, the preview will be activated.

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How to hide text in selective app notifications on the locked screen of iPhone or iPad

If it is necessary to hide the text of messages in a specific application, then in the application “Settings” open the section “Notifications” and select the required application.

How to hide lock screen notification text from prying eyes on iPhone or iPad

Go to the menu Thumbnail display and check the box next to Never…

How to hide lock screen notification text from prying eyes on iPhone or iPad

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I configured everything, but something doesn’t work …

Restart your device just in case. Please note that some programs may conflict with iOS settings due to their own notification settings within the application. So, for example, Telegram and Instagram have their own tools for carefully configuring notifications in the application settings. In order to Notifications iOS worked correctly, enable notifications in the program itself.

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Filed Under: Uncategorized Tagged With: eyes, hide, iPad, iPhone, lock, Notification, prying, screen, text

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