A purely monochromatic photo of a castle will appear colourised in this optical illusion. It creates an afterimage in your brain, a negative if you will. The baffling effect can be explained by how our eyes struggle to adjust to a new image or colours shown to us.
The illusion uses a false colour image of Dunstaburgh Castle in Northumberland (pictured) to desensitise your retina so a monochrome picture appears to be fully coloured. Stare at the dot in the middle of the screen until the image changes to what appears to be color. Look away then look back and for a split second you will s.
In the following video, you'll be asked to stare at the black dot in the center of a photo of a castle. If you keep staring at the dot after the false color image has gone away, and the black-and-white photo returns, you'll be surprised to see the castle in full color (even though it isn't)! The illusion consists of three illustrations of a castle side by side. Each castle has different colour stripes.
And at first glance, it appears as if the castles are of different colours. However, upon closer inspection, it becomes clear that the castles are, in fact, of the same colour. After about 20 seconds, grey scaled image of spanish castle will appear, but as your eyes adapt to the inverted image you were seeing first, you will see black&white image change to COLOR! A new optical illusion has gained popularity on Instagram.
Three pictures of a castle are placed side by side to create the illusion. The stripes on each castle are different colours. If you stare at the colored picture of the castle, and then stare at a white sheet of paper, nothing happens.
You need to actually see the black and white photo for the colors to come out. Also, if you glance away from the dot for even a fraction of a second, the illusion disappears which seems different than an afterimage illusion. Here are a couple of interesting diversions that dramatically illustrate the degree to which color perception is controlled by the effect of previous or adjacent colors.
The first, Big Spanish Castle, is a simple, but dramatic and fun, color-based optical illusion. Based on the visual effects of complementary colors and the optical/brain phenomenon known as an afterimage, the illusion is. Squint at the weird 'false colour' image of the castle above for 30 seconds, and you can see the black.