Your Brain Makes up What You See

Your Brain Makes up What You See

From Not Rocket Science, some optical illusions that you'll swear are a trick. In the image below, the spirals look pink, green, and blue. Each is actually made up of stripes: green/orange, orange/violet, and violet/green. The amazing thing is that you'd swear that the green next to the violet is really sky-blue. In reality's it's the same color that's next to the orange, as will become apparent if you zoom in on the picture far enough.

Here's one that's even harder to swallow:



The "light" squares within the shadow are the same color as the "dark" squares outside of the shadow. I couldn't blow up a screen-capture of the checkboard image far enough to make the illusion go away; I had to print it out and fold the page over to convince myself.

Here is a screen capture for your printing and folding purposes, those of you who (like me) couldn't be bothered to go into Photoshop and capture the hexadecimal value of the colors, as several of the commenters on the linked site did: