Re:Akiyoshi's Illusion Pages
by nr2x on Thursday January 14, 2021 @09:56PM
(#25786429)
I can’t believe he’s still updating this, thanks so much for the link. Been years since I saw this. The guy is straight-up hacking your visual processing system!
Re:Akiyoshi's Illusion Pages
by nneonneo on Thursday January 14, 2021 @10:15PM
(#25786571)
I would also recommend following Akiyoshi on Twitter (https://twitter.com/AkiyoshiKitaoka) so you can have a daily dose of visual hackery on your Twitter feed :)
Re:Akiyoshi's Illusion Pages
by miahi on Friday January 15, 2021 @03:17AM
(#25788286)
I remember stumbling on this page in 2003-2004. When I saw the title here I thought 'I hope it's the same' - and it is! It looks exactly like it was back then[1]. Love it!
Re:Akiyoshi's Illusion Pages
by skc on Friday January 15, 2021 @02:31AM
(#25788042)
What's curious for me is that I've visited these illusions before in the past and over time I've noticed that I've gradually stopped experiencing a growing number of them.
Re:Akiyoshi's Illusion Pages
by jonhohle on Friday January 15, 2021 @11:26AM
(#25792591)
When seeing lists of optical illusions, I never see anything regarding Edward Land's work regarding the perception of color in red/white images[0]. With readily available HDR displays this may no longer be relevant, but still interesting.
Re:Akiyoshi's Illusion Pages
by ku-man on Friday January 15, 2021 @01:00AM
(#25787538)
I am sure I am not the only one but some of the illusions do not work for me, and some only work after reading the description. Does your brain needs to be trained to 'get' the illusion?
Re:Akiyoshi's Illusion Pages
by toyg on Friday January 15, 2021 @09:17AM
(#25791172)
Vision is deeply entangled with pattern recognition, so it makes sense: feeding data into your brain about what it's expected to detect will help with detecting it. It's counterintuitive, but in the end vision is not really the low-level signal we think it is, but rather a pretty high-level conceptualization.
Re:Akiyoshi's Illusion Pages
by flyinghamster on Friday January 15, 2021 @09:06AM
(#25791047)
I've noticed that as well - but others just about leap off the page for me. Also, some only seem to work at certain distances, or if I am moving, or if I'm scrolling the page.
http://en.ritsumei.ac.jp/news/detail/?id=278
https://www.frontiersin.org/articles/10.3389/fpsyg.2018.0034...
Apparently he showed his "rotating snake" image to a neural network trained to predict upcoming video frames, it also "saw" the illusory motions.
https://www.youtube.com/watch?v=CcXXQ6GCUb8&ab_channel=rasmu...
https://www.youtube.com/watch?v=S4IHB3qK1KU&ab_channel=Squir...
https://twitter.com/AkiyoshiKitaoka/status/13500017144436080...
"Illusory yellow is observed around hearts."
Had to zoom to be convinced that there really are indeed no #ffff00 pixels in there
This would be an interesting way to create the illusion of fifth color in 4-color CGA
[1] https://web.archive.org/web/20030202031646/http://www.ritsum...
0 - https://web.archive.org/web/20080914012938/http://land.t-a-y...
https://michaelbach.de/ot/