December 12, 2007

An Interesting Visual Effect

Don't worry. It's not one of those stupid "stare at this until a creepy picture and loud noise pop up to scare you" tricks.

 I'm really curious what makes it work. I think it maybe be etching color info into the cones of the retina while somehow not affecting the rods. Then when they switch to a black and white image, your eye continues to over-compensate for a split second, filling in the colors of the image.

I'm reminded of this other optical illusion brought on by color fatigue in the cones of the retina. Stare at the black cross, and watch what happens to the purple dots over time.

Posted in Random Debris by: Will at 01:12 PM | Comments (2) | Add Comment
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1 The image you're staring at is the inverse of the hue and saturation with all the brightness removed, and yes, the point is to induce a color after-image. Then they remove that and replace it with the B/W image, which effectively gets modified by the color after image from before.

Posted by: Steven Den Beste at December 12, 2007 04:03 PM (+rSRq)

2 Which means I could pretty easily do something similar on my own with Photoshop. I'll have to play around with it a bit later on tonight.

Posted by: Will at December 12, 2007 04:25 PM (WnBa/)

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