You are here: Home › Entertainment › Interesting Optical Illusion ← US Military’s Ray Gun Good use for annoying CAPTCHAS → Interesting Optical Illusion By viewing an inverted color picture and then switching to a black and white version of the picture, to your eye it appears in color, at least until you blink. This optical illusion relies on a principle called “Chromatic Adaptation”. Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.