The false colour illusion on the b/w image fades fast, but if you look completely away from the image, then suddenly back at the black dot, you may see it again - I did (not as strongly the second time).
For the people that didn’t get it to work - it’s definitely worth it to go back and try again. Just make sure to stare intently at the black dot and don’t shift your gaze or move your head.
I had seen these before and knew what to expect, but when it switched I saw such a vibrant, colourful image that I felt a sliver of doubt that the actual picture could really be B&W. I enjoyed it for a few seconds before shifting my gaze and ruining the illusion.
It really helps to cover the status bar, with your hand or with some object. The effect was much stronger for me after I did that.
Yes, and after the switch, you have to avoid your natural instinct to examine different parts of the photo. If you shift your gaze away from the dot to another part of the picture, the color effect is lost.
The Spanish Castle one is infinitely more impressive - but make sure you read the instructions properly before trying it.
Interestingly enough, if you do this and then remove your hand when the black and white picture is shown, the part you used to cover appears blue. It did when I tried it anyway.
I liked the Castle one. I found that if I refocussed on the dot after I’d looked away the colour would return. That lasted a good thirty seconds and I looked away at least half a dozen times.
Neat.
Blue is the negative colour of the flesh color of your hand (thus I deduce that you’re Caucasian).
Yes, this is what I assumed, but I wasn’t sure. I am.
Oh, Red, you’re so warm and inviting. And Green, you’re looking very healthy today. My, Yellow, you have such a sunny personality…
It didn’t happened with me - I saw it black&white. I don’t know why, but these picture tricks never work with me. I see everything as it is. Can somebody explain why?
It could possibly be with you not being able to keep your eyes perfectly still throughout the entire thing. If your eyes wander around the image rather than stare fixedly at the black dot, you won’t get the after-image on your retina. That said, there may be other reasons too, but I don’t know enough to suggest what they might be.