PigLick on 20/6/2006 at 15:35
like a fish milkshake
trevor the sheep on 20/6/2006 at 15:51
That's what I was saying man. The opponent colour stuff just deals with the signals being rationalised in the bipolar neurones the cones synapse with (I think, I'm going on A-level knowledge here), it still recieves inputs from the 3 different kinds of cone cells though. The grayscale picture provides shading or something.
I'm presuming you posted that as you thought it was proving us wrong.
BUT
HATE TO SAY IT
BUT
I'M RIGHT i@M RIGHT NER NER NER NER enrfvm
Rogue Keeper on 20/6/2006 at 15:59
Nope, originally you said "It'll be something to do with the cones being bleached by staring at the colours of the image so you'll have an image in your mind of the inverse colours. Just putting the images from the site over the top of each other will do fuck all because it's an OPTICAL ILLUSION."
With that you were just as close to the truth as I was with "image being imprinted into your retina".
If I didn't search for some exact scientific explanation first, you would keep guessing to page 8. Now that I found the truth, you play a scientist and yell "I WINZOR!!" :grr:
I take back my folies suggestion.
("image in your ... mind"... LOL ... sounds like astrology)
OrbWeaver on 20/6/2006 at 15:59
One could say that the grayscale image provides luminance and the colour image provides chrominance. If you did what BR463722 suggests you would get a colour image but with the same colours as the chrominance image, not the inverse as with the illusion.
This illusion actually illustrates another interesting point, in that the eye is much more sensitive to variations in luminance than chrominance (compare the detailed grayscale image with the vague colour image). This fact is exploited by video codecs which reduce the resolution of the chroma signal, saving bandwidth in the process.
trevor the sheep on 20/6/2006 at 16:06
You know why it's more sensitive to variations on light than colour??? I DO!!! ME ME ME
It's because several rod cells synapse with one bipolar neurone. So by summation small amounts of light can trigger a nerve impulse in rod cells. Each cone cell only synapses with one bipolar neurone. I RULE.
I thought you were off BR you mad maverick renegade scientist you.
Rogue Keeper on 20/6/2006 at 16:09
Off, right. Smarter biologists than us two have argued over this already.
trevor the sheep on 20/6/2006 at 16:14
That's right, you don't let reality tell you what's science!
Rogue Keeper on 20/6/2006 at 16:15
"Image in your mind..." :cheeky:
ok, OFF.
trevor the sheep on 20/6/2006 at 16:18
Those theories supported by evidence don't got NOTHING on you man!
"Because your eye is motionless, the specific color scale picture "imprints" itself into your eye retina,"
DERP!
"If you'd print both versions on transparent plastic foil and put one over another, you would get a color picture also."
DE-HERP!
(please don't go I'm still buzzing off of my exam and this morning and you're making me feel dead clever)
OrbWeaver on 20/6/2006 at 16:26
The second one is right though - you would get a colour picture, just not the same one you see when doing the illusion.
