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Tag: eyesight

How dogs see the world

1dogvisionA new app lets you see the world — or at least photos of the world — through a dog’s eyes.

All you have to do is upload a photo and wait as the app translates your clear and colorful image into a fuzzy, less bright and less colorful version.

The app is called Dog Vision, and this link takes you straight to the image processing tool.

A dog’s vision is similar to what a human with red-green color blindness sees.

Dogs don’t see as clearly as we do. They have less sensitivity to brightness. And they don’t see shades of grey — not 50 or even 10. All greys, to them, look the same. Because they have only two types of cones (unlike our three) their color vision is limited.

As a result, an Autumn scene like this:


Looks more like this:


And a colorful image of Mardi Gras like this:


Is seen by them like this:


(Photos: Business Insider)