Hvilken farge er det på kjolen?

[AnonymBruker]

Hadde det, ja.

Anonymous poster hash: 78733...7a7

Har du link til versjonen som du syntes forandret seg?

Anonymous poster hash: 154cd...e32

[Gjest Rosemor]

Svart ser jeg ikke på noen av bildene, men det veksler mellom hvitt og lyseblått, avhengig av hvilket bilde jeg ser på.

Nå har jeg vært borte fra dataen noen timer, og så på bildet som det er linket til i startinnlegget, og nå er kjolen klart blå og svart.

Samme data, samme plassering av data, men litt ulike lysforhold.

Jeg har lest forklaringen på hvorfor, og selv om jeg ser logikken i det er det likevel et merkelig fenomen.

[AnonymBruker]

Nå har jeg vært borte fra dataen noen timer, og så på bildet som det er linket til i startinnlegget, og nå er kjolen klart blå og svart.

Samme data, samme plassering av data, men litt ulike lysforhold.

Jeg har lest forklaringen på hvorfor, og selv om jeg ser logikken i det er det likevel et merkelig fenomen.

Hva var forklaringen?

Anonymous poster hash: 154cd...e32

[AnonymBruker]

Har du link til versjonen som du syntes forandret seg?

Anonymous poster hash: 154cd...e32

linken i hi.

Anonymous poster hash: 78733...7a7

[Gjest Rosemor]

Hva var forklaringen?

Anonymous poster hash: 154cd...e32

Lyset entrer øyet - forskjellig bølgelengder korresponderer til ulike farger. Lyset treffer netthinnen bak i øyet hvor pigmenter fyrer opp nerveforbindelser til cortex, som er den delen av hjernen som setter sammen signalene og former et bilde.

Første utbrudd av lys er laget av hvilke bølgelengder dagslyset reflekterer akkurat der og da, uansett hva du ser på. Hjernen din finner ut av hvilken farge lyset reflekterer av den tingen du ser på, og i hovedsak trekker den fargen bort fra «den ekte fargen på objektet».

http://www.minmote.no/#!/artikkel/23404668/breaking-the-internet-hvilken-farge-har-denne-kjolen

[AnonymBruker]

http://www.livescience.com/32559-why-do-we-see-in-color.html

Roses are red and violets are blue, but we only know that thanks to specialized cells in our eyes called cones.

When light hits an object – say, a banana – the object absorbs some of the light and reflects the rest of it. Which wavelengths are reflected or absorbed depends on the properties of the object.

For a ripe banana, wavelengths of about 570 to 580 nanometers bounce back. These are the wavelengths of yellow light.

When you look at a banana, the wavelengths of reflected light determine what color you see. The light waves reflect off the banana's peel and hit the light-sensitive retina at the back of your eye. That's where cones come in.

Cones are one type of photoreceptor, the tiny cells in the retina that respond to light. Most of us have 6 to 7 million cones, and almost all of them are concentrated on a 0.3 millimeter spot on the retina called the fovea centralis.

http://www.livescience.com/21275-color-red-blue-scientists.html

Anyone with normal color vision agrees that blood is roughly the same color as strawberries, cardinals and the planet Mars. That is, they're all red. But could it be that what you call "red" is someone else's "blue"? Could people's color wheels be rotated with respect to one another's?

"That is the question we have all asked since grade school," said Jay Neitz, a color vision scientist at the University of Washington. In the past, most scientists would have answered that people with normal vision probably do all see the same colors. The thinking went that our brains have a default way of processing the light that hits cells in our eyes, and our perceptions of the light's color are tied to universal emotional responses. But recently, the answer has changed.

"I would say recent experiments lead us down a road to the idea that we don't all see the same colors," Neitz said.

Another color vision scientist, Joseph Carroll of the Medical College of Wisconsin, took it one step further: "I think we can say for certain that people don't see the same colors," he told Life's Little Mysteries.

One person's red might be another person's blue and vice versa, the scientists said. You might really see blood as the color someone else calls blue, and the sky as someone else's red. But our individual perceptions don't affect the way the color of blood, or that of the sky, make us feel.

Some sort of perception

An experiment with monkeys suggests color perception emerges in our brains in response to our experiences of the outside world, but that this process ensues according to no predetermined pattern. Like color-blind people and most mammals, male squirrel monkeys have only two types of color-sensitive cone cells in their eyes: green-sensitive cones and blue-sensitive cones. Lacking the additional information that would be picked up by a third, red-sensitive cone, the monkeys can only perceive the wavelengths of light we call "blue" and "yellow;" to them, "red" and "green" wavelengths appear neutral, and the monkeys cannot find red or green dots amid a gray background. [How Dogs See the World]

In work published in the journal Nature in 2009, Neitz and several colleagues injected a virus into the monkeys' eyes that randomly infected some of their green-sensitive cone cells. The virus inserted a gene into the DNA of the green cones it infected that converted them into red cones. This conferred the monkeys with blue, green and red cones. Although their brains were not wired for responding to signals from red cones, the monkeys soon made sense of the new information, and were able to find green and red dots in a gray image.

The scientists have since been investigating whether the same gene therapy technique could be used to cure red-green color blindness in humans, which affects 1 percent of American men. The work also suggests humans could one day be given a fourth kind of cone cell, such as the UV-sensitive cone found in some birds, potentially allowing us to see more colors.

But the monkey experiment had another profound implication: Even though neurons in the monkeys' brains were wired to receive signals from green cones, the neurons spontaneously adapted to receiving signals from red cones instead, somehow enabling the monkeys to perceive new colors. Neitz said, "The question is, what did the monkeys think the new colors were?"

The result shows there are no predetermined perceptions ascribed to each wavelength, said Carroll, who was not involved in the research. "The ability to discriminate certain wavelengths arose out of the blue, so to speak — with the simple introduction of a new gene. Thus, the [brain] circuitry there simply takes in whatever information it has and then confers some sort of perception."

When we're born, our brains most likely do the same thing, the scientists said. Our neurons aren't configured to respond to color in a default way; instead, we each develop a unique perception of color. "Color is a private sensation," Carroll said. [How Colors Got Their Symbolic Meanings]

Emotional colors

Other research shows differences in the way we each perceive color don't change the universal emotional responses we have to them. Regardless of what you actually see when you look at a clear sky, its shorter wavelengths (which we call "blue") tend to make us calm, whereas longer wavelengths (yellow, orange and red) make us more alert. These responses — which are present not just in humans, but in many creatures, from fish to single-celled organisms, which "prefer" to photosynthesize when the ambient light is yellow — are thought to have evolved as a way of establishing the day and night cycle of living things.

Because of how the atmosphere scatters sunlight throughout the day, blue light dominates at night and around midday when living things lie low, to avoid darkness or harsh UV light. Meanwhile, yellow light dominates around sunrise and sunset, when life on Earth tends to be most active.

In a study detailed in the May issue of the journal Animal Behavior, Neitz and his colleagues found that changing the color (or wavelength) of ambient light has a much bigger impact on the day-night cycle of fish than changing the intensity of that light, suggesting that the dominance of blue light at night really is why living things feel more tired at that time (rather than the fact that it's dark), and the dominance of yellow light in the morning is why we wake up then, rather than the fact that it's lighter. [Busting the 8-Hour-Sleep Myth: Why You Should Wake Up in the Night]

But these evolved responses to color have nothing to do with cone cells, or our perceptions. In 1998, scientists discovered a totally separate set of color-sensitive receptors in the human eye; these receptors, called melanopsin, independently gauge the amount of blue or yellow incoming light, and route this information to parts of the brain involved in emotions and the regulation of the circadian rhythm. Melanopsin probably evolved in life on Earth about a billion years prior to cone cells, and the ancient color-detectors send signals along an independent pathway in the brain.

"The reason we feel happy when we see red, orange and yellow light is because we're stimulating this ancient blue-yellow visual system," Neitz said. "But our conscious perception of blue and yellow comes from a completely different circuitry — the cone cells. So the fact that we have similar emotional reactions to different lights doesn't mean our perceptions of the color of the light are the same."

People with damage to parts of the brain involved in the perception of colors may not be able to perceive blue, red or yellow, but they would still be expected to have the same emotional reaction to the light as everyone else, Neitz said. Similarly, even if you perceive the sky as the color someone else would call "red," your blue sky still makes you feel calm.

HVILKEN FARGE SER DU HER:

http://www.vox.com/2015/2/26/8118961/color-dress-science

Jay Neitz, PhD, of the University of Washington seemed like the person who could finally explain this baffling dress, and thus put our long national nightmare to an end. Alas, even Neitz, despite offering a solid-sounding theory, seems unable to fully explain it.

Colored lighting, Neitz said, can change how you perceive colors within that light. He cites, as an example, a red Volkswagon that looked white to him when it was lit by red brake lights.

Tumblr user swiked, who saw the dress in person, says it was blue and black. Neitz suggests that the photo may have been taken in bluish light, which could make it appear white. But, as Vice writers Arielle Pardes and Mike Pearl explain, and Neitz acknowledges, that does not explain why two people might look at the same photo and see entirely different things. Here are Vice's Pardes and Pearl:

The photo was probably taken in blueish lighting, which makes your brain think that the dress is actually white. That makes sense. What doesn't make sense is why some peoples' brains perceive this as blue and others perceive this as white. Dr. Neitz specifically studies individual differences in how people see, and he'd never seen anything like this.

"In general, you're going to see differently than the person next to you," Neitz told Vice. "But this is a huge difference." He joked, "Now I'm going to spend the rest of my life working on this. I thought I was going to cure blindness, but now I guess I'll do this."

In other words, even a very plausible sounding theory, presented by a scientist who literally studies color perception, appears unable to fully explain the phenomenon of the color-changing dress.

That said, neuroscientist Bevil Conway of Wellesley College, speaking to Wired, did seem able to take Neitz's approach another step to fully make sense of it. He suggests the answer may have to do with light, as Neitz says, but Conway gets more specific.

"What's happening here is your visual system is looking at this thing, and you're trying to discount the chromatic bias of the daylight axis," Conway told Wired. "So people either discount the blue side, in which case they end up seeing white and gold, or discount the gold side, in which case they end up with blue and black."

Anonymous poster hash: 47f9c...e9a

[AnonymBruker]

For meg så skifter det fra hvit og gull til blå og svart.. Merkelige greier!

Anonymous poster hash: d711b...699

[AnonymBruker]

Nå merket jeg også en forskjell men det var når jeg skrollet ned. Hvis dere scroller ned sånn at dere bare ser nedre del, ser dere da blå og svart, men hvis dere bare scroller sånn at dere ser øvre del, ser dere da hvitt og gull? Ikke se hele kjolen på en gang.

Anonymous poster hash: 154cd...e32

[AnonymBruker]

Jeg tror ikke problemet er at vi oppfatter bildet feil. jeg tror problemet er at vi har forskjellige dataskjermer. Vi er blitt så involvert i teknologi at vi ikke tenker på at vi selvfølgelig har forskjellige skjermer, og når noe er på grenseland i ett eller annet så kan skjermene viser fargene helt forskjellig.

Er det noen som har sett på samme skjerm med noen og så har sett forskjellige farger?

Anonymous poster hash: 154cd...e32

Nope! For meg har kjolen skifta farge. Første gang jeg såg bildet på NRK: gull og hvit. Andre gangen: blå og svart. Samme bilde, samme skjerm.

Anonymous poster hash: d711b...699

[AnonymBruker]

Egentlig er denne tråden virkelig rar- klarer man ikke å innse at folk ser farger forskjellig?

Og, LESER ikke folk det som har blitt skrevet om lys og skygge? For det forklarer jo en del.

Anonymous poster hash: 2d787...c15

[AnonymBruker]

Nope! For meg har kjolen skifta farge. Første gang jeg såg bildet på NRK: gull og hvit. Andre gangen: blå og svart. Samme bilde, samme skjerm.

Anonymous poster hash: d711b...699

Ja, jeg ser nå at det er rett, det er noe optisk illusjonsgreier, når jeg ser nedre del ser jeg mer svart og blå, mens øvre del er hvit og gull.

Anonymous poster hash: 154cd...e32

[AnonymBruker]

Nå merket jeg også en forskjell men det var når jeg skrollet ned. Hvis dere scroller ned sånn at dere bare ser nedre del, ser dere da blå og svart, men hvis dere bare scroller sånn at dere ser øvre del, ser dere da hvitt og gull? Ikke se hele kjolen på en gang.

Anonymous poster hash: 154cd...e32

Men det har jo allerede en bruker på side 6 vist klart og tydelig.

Anonymous poster hash: 2d787...c15

[AnonymBruker]

Jeg tror ikke problemet er at vi oppfatter bildet feil. jeg tror problemet er at vi har forskjellige dataskjermer. Vi er blitt så involvert i teknologi at vi ikke tenker på at vi selvfølgelig har forskjellige skjermer, og når noe er på grenseland i ett eller annet så kan skjermene viser fargene helt forskjellig.

Er det noen som har sett på samme skjerm med noen og så har sett forskjellige farger?

Anonymous poster hash: 154cd...e32

Jeg har sett på samme skjerm og sett forskjellige farger.

Anonymous poster hash: d316d...a8b

[AnonymBruker]

Nå merket jeg også en forskjell men det var når jeg skrollet ned. Hvis dere scroller ned sånn at dere bare ser nedre del, ser dere da blå og svart, men hvis dere bare scroller sånn at dere ser øvre del, ser dere da hvitt og gull? Ikke se hele kjolen på en gang.

Anonymous poster hash: 154cd...e32

Jeg forstår hva du mener, jeg la også merke til dette. Nederste del av bildet har et kaldere skjær, og kjolen ser mer blå ut. Hvis jeg myser når jeg ser på nederste del av kjolen blir den helt blå og svart, men ser jeg hele bildet normalt er det kun hvitt og gull

Anonymous poster hash: d316d...a8b

[LoneWolf]

Ser enten hvit og gull, eller blå (ish) og gull. Hvor folk får svart fra må gudene vite...

[Gjest kisskiss]

HM...skulle ta bilde av kjolen som var på pc med mobilen og snappe det, på mobilen ble den blå/sort å plutselig ble kjolen på pcen blå/sort også. når jeg tok vekk mobilen med bilde av kjolen, så ble kjolen hvit og gull igjen

[Antlers]

Sært. Jeg ser bare blått/blålilla og sort på alle de forskjellige bildene, og da på tre forskjellige enheter. Det var nesten så jeg trodde det var 1. april da jeg leste at noen mente den så hvit ut.

[AnonymBruker]

Jeg forstår hva du mener, jeg la også merke til dette. Nederste del av bildet har et kaldere skjær, og kjolen ser mer blå ut. Hvis jeg myser når jeg ser på nederste del av kjolen blir den helt blå og svart, men ser jeg hele bildet normalt er det kun hvitt og gull

Anonymous poster hash: d316d...a8b

Kult, prøvde å myse litt selv. Synes verjonen på minmote.no: http://www.minmote.no/#!/artikkel/23404668/breaking-the-internet-hvilken-farge-har-denne-kjolenskifter farge mer når jeg scroller opp og ned.

Anonymous poster hash: 154cd...e32

[AnonymBruker]

Jeg tror ikke problemet er at vi oppfatter bildet feil. jeg tror problemet er at vi har forskjellige dataskjermer. Vi er blitt så involvert i teknologi at vi ikke tenker på at vi selvfølgelig har forskjellige skjermer, og når noe er på grenseland i ett eller annet så kan skjermene viser fargene helt forskjellig.

Er det noen som har sett på samme skjerm med noen og så har sett forskjellige farger?

Anonymous poster hash: 154cd...e32

Nei. Vi var 5 stk som så fra samme skjerm. Jeg og en annen så hvit og gul mens resten så blå og svart.

Anonymous poster hash: 3b010...5e3

[AnonymBruker]

Nei. Vi var 5 stk som så fra samme skjerm. Jeg og en annen så hvit og gul mens resten så blå og svart.

Anonymous poster hash: 3b010...5e3

Ja, jeg trakk tilbake dette.

Anonymous poster hash: 154cd...e32