Friday, February 27, 2015

Why do we see different dress? – ElEspectador.com

The doubts against a simple image that a user of Tumblr sent to friends different colors originated after that some people saw the white and gold garment, to the original.

While the first explanation that appeared on the false networks, of course- appealed to the mood of each person to give reason why different shades, the fact is that this case It is a very good example of how the eyes and the human brain has evolved to perceive color.

The process in which transform color images a number of lengths wave reaches our eyes stimulating neural connections. There the information is interpreted and then sent to the brain where there is a filter that takes light and background image to determine what we are seeing. This representation can be affected by factors as simple as lighting and background color.

What happens if the picture of the dress is that there are elements that can cause confusion and lead some people to see white and gold. First, as the scientific vision Bart Anderson, University of Sydney, told the website Newscientist, the garment is made of a mixture of quite complicated and very close shades in a wide range of hues. Ie, gold, black, brown, blue and white are coming tones that can cause confusion in our brain.

In addition, ambiguity arises because the image does not have enough information to interpret correctly. It lacks, for example, shadows to tell us where the light that illuminates the picture comes. And the bottom does not have data to suggest us what is the correct way to read the color. Those who are surely confuse dark blue dress with white and black with gold. But if they are susceptible to light colors, most likely see the correct tones. It depends on the genetic predisposition of the eyes.

And once the brain does this reading of the image is very difficult to achieve after correct interpretation. So many think impossible to change position on the colors they have seen for the first time.

The most practical demonstration of this theory did Hope Taylor, professional photography. Using the software Adobe Lightroom led colors to warm tones and showed that this you can see the dress as white and gold. bringing it to cool shades blue and black appears. His explanation was approved and retweeted the company Adobe, perhaps the most recognized in the world for the development of software for graphic design.

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