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Illusion real play images
Illusion real play images











illusion real play images
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"The raster of dots gives a nice analogy to half-toning as used in print, where colour assimilation aids the optical mixture of colours that already happens before our visual system gets involved," Kolås explains on his Patreon page.Īnd here's an example using lines to create the same effect:Īnother one, with horizontal lines instead of a grid. While Kolås finds grids offer the best effect, he's also played around with other ways of achieving the visual trick, using alternatives like dots and lines:

illusion real play images

The illusion isn't just created by using coloured grids, either. But when you look at a two-dimensional image, your brain can. You live in a three-dimensional world, so your brain gets clues about depth, shading, lighting, and position to help you interpret what you see. Optical illusions teach us how our eyes and brain work together to see. Some of the people in that photo hadn't given permission for it to be shared online, and Kolås has asked for it not to be used, which is why we've put up one of his other examples instead. An optical illusion is something that plays tricks on your vision. If you've seen this illusion doing the rounds, you might notice this isn't the main image being shared. Or, you might say, a little bit of colour goes a long way. In other words, our brain kind of compresses visual information when we look at things, giving us an overall impression of what's there if we don't take the time to examine objects closely. "So the grids get 'averaged' with the achromatic background, which then gets attributed to that part of the image."

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"The colour system is what vision scientists refer to as 'low pass', i.e., many of the receptive fields that code colour are quite large," Anderson told ScienceAlert. In this geometricaloptical illusions will surely play a pivotal role.

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So what's going on here to make our brains actually interpret this black-and-white picture as if it's full colour image?Īccording to vision scientist Bart Anderson from the University of Sydney, the effect we're seeing in this illusion isn't particularly surprising. The stimulus situation in the real world of visual objects is unproblematic: it. "An over-saturated coloured grid overlaid on a grayscale image causes the grayscale cells to be perceived as having colour," Kolås explains on his Patreon page.

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Created by digital media artist and software developer Øyvind Kolås as a visual experiment, the technique, which Kolås calls the 'colour assimilation grid illusion', achieves its effect by simply laying a grid of selectively coloured lines over an original black-and-white image.













Illusion real play images