Cool - I love these optical demonstrations. Just imagine the same eye that sees color when it isn't there also sees ghosts and sasquatch!
On Mon, Jul 7, 2008 at 8:28 PM, Oleg Kobchenko <[EMAIL PROTECTED]> wrote: > > From: June Kim <[EMAIL PROTECTED]> > > > > > You'll see a black&white picture but it'll look like a full-colored > picture. > > > > http://effbot.org/zone/ponies.htm > > > > Python code to generate the illusion is linked on that page. > > > > Translating that code into J would be interesting (which I'll do when > > I get free time) > > The two images are: inverted chroma and luminosity. > It uses the memory effect of the retina when it fatigues and > preserves inverse image for some time, which in this case > overlaps with the second (luminance) to get a full color > image illusion. > > There's YUV transforms in media/image3 addon. > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
