Illusion

[ewx]

Illusion

Comments

[lethargic-man.livejournal.com]

Whoa, cool! (I can kind of see how it happens too.)

[simonb.livejournal.com]

Nice, just a shame that its an animated GIF tho...

%  curl http://www.patmedia.net/marklevinson/cool/image.gif | gifsicle --info
  % Total    % Received % Xferd  Average Speed          Time             Curr.
                                 Dload  Upload Total    Current  Left    Speed
100 38593  100 38593    0     0  20027      0  0:00:01  0:00:01  0:00:00 37420
* <stdin> 12 images
  logical screen 467x467
  global color table [256]
  background 219
  loop forever
  + image #0 467x467
    comment \377777776512005 Jeremy L. Hinton\r\npublished at <www.michaelbach.de/ot/>
    delay 0.10s
  + image #1 125x155 at 278,59
    delay 0.10s
  + image #2 92x147 at 335,116
    delay 0.10s
  + image #3 85x141 at 342,195
    delay 0.10s
  + image #4 125x132 at 286,268
    delay 0.10s
  + image #5 155x136 at 200,331
    delay 0.10s
  + image #6 164x136 at 110,331
    delay 0.10s
  + image #7 125x146 at 54,254
    delay 0.10s
  + image #8 123x141 at 0,195
    delay 0.10s
  + image #9 140x147 at 0,115
    disposal asis delay 0.10s
  + image #10 151x183 at 62,0
    disposal asis delay 0.10s
  + image #11 212x137 at 84,0
    disposal background delay 0.10s

[ewx.livejournal.com]

What's wrong with that?

[simonb.livejournal.com]

Because if you're doing an optical illusion from an animated GIF you'll have to show that its down to a real optical illusion and not futzing around with images within the animated GIF itself.

[ewx.livejournal.com]

Surely the same is true of any form of computer-animated optical illusion. At least with a GIF the tools to decompose it into its constituent frames are relatively easily understood; you could not say the same of disassembling a java applet to determine what it did.

[ptc24.livejournal.com]

Show me an animated .gif that can cause the dots to go green if and only if I'm staring at a certain point on the screen that doesn't rely on optical illusions and I'll be very impressed indeed.

[pjc50.livejournal.com]

If this is a shame, what would you consider a better version, given that this one relies on the moving dot?

[nevboo.livejournal.com]

oh! finally a phenomenon my training as a biologist can help me understand!