black in blue dress Understanding the and Illusion Plus Size Formal Dresses Designer Blue And Black Dresses |
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What little you can see of the background shows this overexposure (and that overexposure has been digitally enhanced in some versions floating around the internet). His colleague Roy Berns agrees

Increasing and decreasing the white balance can even be helpful: So what is the actual, real dress color

Other famous examples of this are the duck-rabbit illusion (sometimes called the rabbit-duck or Jastrow duck-rabbit) or necker cub

Then, it absolutely blew up

The truth is the colors of the dress in the photograph are a murky brown and a greyish lavender
