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> And lo on Wed, 09 Jan 2008 16:42:03 -0000, Invisible <voi### [at] dev null> did
> spake, saying:
>
>> Try staring cross-eyed at this image for a while...
>
> <shrugs> I can't get any of those types of things to work, it's all a
> bunch of characters/dots/squiggles to me.
>
I could never see anything on these. Both character-based and image-based.
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Rune wrote:
> Nice, though I prefer looking at it cock-eyed ("parallel eyed") to make the
> motive stand out rather than being sunken in.
Just for you, Rune: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#6795#6795A#695A#695A#695A#695A#695A#695
BCDEFBCDEFBCDEFBCDEFBCDEFBGCDFBGCDFBHGCDFBHGCDFBHGCDBHGCDBHGCDBHGC
IJKLMIJKLMIJKLMIJKLMIJKLMNIJLMNIJLMNOILMNOILMNOILMPNOLMPNOLMPNOLMP
QRSTUQRSTUQRSTUQRSTUQRSTUVQRTUVQRTUVQRTUVQRTUVQRTUVWQRUVWQRUVWQRUV
XYZabXYZabXYZacbXYacbXYadcbYadcbYadcbYadcbYadcbYadcebYdcebYdcebYdc
fghijfghijfgkhifglkhfglkmhflkmhflkmhflkmhflkmhflkmhnflmhnflmhnflmh
opqrsopqrsoptqroputqopuvtqpuvtqpuvtqpuvtqpuvtqpuvtqwputqwputqwputq
xyz01xyz01x2yz1x2y3z12y43z2y43z2y43z52y3z52y3z52y36z5y36z5y36z5y36
789#A789#A7B89A7B89AC7B8AC7B8AC7B8AC7DB8AC7DB8AC7DB8C7DB8C7DB8C7DB
EFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIEFGHIE
JKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJKLMNJ
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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>>> Try staring cross-eyed at this image for a while...
>>
>> <shrugs> I can't get any of those types of things to work, it's all a
>> bunch of characters/dots/squiggles to me.
>>
>
> I could never see anything on these. Both character-based and image-based.
The idea is to simply look at the image cross-eyed, so you see double,
and make the repeats line up exactly.
The character-based ones are hard, because unless you have the right
size typeface, it's almost impossible to see. Also, you can only
generate fairly large steps in depth, which easily throws the illusion
off. FWIW, the algorithm for generating random dot images is identical
(but with colours instead of characters).
Try this: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#9567#9567#9567#9567#9567#9567#9567#9567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* * * * * * * * * * * * *
The right half is completely blank, the left half contains a simple image.
If you cross your eyes, each little star at the bottom becomes a *pair*
of stars. If you move your eyes such that the stars appear to exactly
overlap, then you've either returned to normal focus, or you've unlocked
the image. (The hard part is moving to look at other bits of it without
going back into normal focus.)
Do this for long enough, and you will develop a nasty headache. ;-)
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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"Invisible" <voi### [at] devnull> wrote in message
news:47864740$1@news.povray.org...
> Rune wrote:
>
>> Nice, though I prefer looking at it cock-eyed ("parallel eyed") to make
>> the motive stand out rather than being sunken in.
>
> Just for you, Rune:
Nice motive. :)
I think you didn't get my point though. I preferred the previous image,
because when I looked at it the way I prefer (parallel-eyed rather than
cross-eyed) then the motive appeared as I preferred (bulging out rather than
being carved in). There were two reversals, which meant I liked it just the
way it was, even though I used it a different way than intended. :)
Rune
--
http://runevision.com
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Invisible wrote:
>>>> Try staring cross-eyed at this image for a while...
>>>
>>> <shrugs> I can't get any of those types of things to work, it's all a
>>> bunch of characters/dots/squiggles to me.
>>>
>>
>> I could never see anything on these. Both character-based and
>> image-based.
If you have one eye that behaves differently to the other, you will
never see one. You can be e.g. shortsighted, as long as both eyes are
equally shortsighted! If both your eyes are the same, practice is all
that's required...
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Bill Pragnell wrote:
> If you have one eye that behaves differently to the other, you will
> never see one.
That reminds me of a lecturer we had at uni. One eye would look at you,
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Bill Pragnell wrote:
> Invisible wrote:
>>>>> Try staring cross-eyed at this image for a while...
>>>>
>>>> <shrugs> I can't get any of those types of things to work, it's all
>>>> a bunch of characters/dots/squiggles to me.
>>>>
>>>
>>> I could never see anything on these. Both character-based and
>>> image-based.
>
> If you have one eye that behaves differently to the other, you will
> never see one. You can be e.g. shortsighted, as long as both eyes are
> equally shortsighted! If both your eyes are the same, practice is all
> that's required...
Yep - never ever been able to see one.
I understand the principle, but again... never ever been able to see one.
Tom
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Invisible wrote:
>> Now try to somehow incorporate the actual transcendental sequence into
>> it :)
>
> I was going to make it out of the digits of Pi - but the digit sequence
> repeats too much, which screws up the illusion. (Actually, virtually
> every digit sequence I tried repeats too much. Hence the letters...)
>
3.141592653 3.141592653 3.141592653 3.141592653 3.141592653 3.1415926
5897932384625897932384625897932384625897932384625897932384625897932384
3.141592653 3.11592653 3.11592653 3.11592653 3.111592653 3.111592653
5897932384625879323846258793238462587932384625879332384625879332384625
3.141592653 .1141526533 .1141526533 .1415526533 .1415526533 .14155265
5897932384625897932846225897932846225879322846225879322846225879322846
3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
5897932384625897932846225897932846225879322846225879322846225879322846
3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
5897932384625897932846225897932846225879322846225879322846225879322846
3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
5897932384625897932846225897932846225879322846225879322846225879322846
3.141592653 3.141526533 3.141526533 3.415226533 3.415226533 3.4152265
5897932384625897933846225897933846225897338446225873338446225873338446
3.141592653 3.145926553 3.145926553 3.1492655533.11492655533.11492655
5897932384625897323846625897323846625897328466258997328466258997328466
3.141592653 3.141592653 3.141592653 3.141592653 3.141592653 3.1415926
5897932384625897932384625897932384625897932384625897932384625897932384
;)
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Mike Raiford wrote:
> ;)
Mmm... your ASCII art is better than mine...
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Mike Raiford wrote:
> 3.141592653 3.141592653 3.141592653 3.141592653 3.141592653 3.1415926
> 5897932384625897932384625897932384625897932384625897932384625897932384
> 3.141592653 3.11592653 3.11592653 3.11592653 3.111592653 3.111592653
> 5897932384625879323846258793238462587932384625879332384625879332384625
> 3.141592653 .1141526533 .1141526533 .1415526533 .1415526533 .14155265
> 5897932384625897932846225897932846225879322846225879322846225879322846
> 3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
> 5897932384625897932846225897932846225879322846225879322846225879322846
> 3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
> 5897932384625897932846225897932846225879322846225879322846225879322846
> 3.141592653 3.141526533 3.141526533 31415526533 31415526533 314155265
> 5897932384625897932846225897932846225879322846225879322846225879322846
> 3.141592653 3.141526533 3.141526533 3.415226533 3.415226533 3.4152265
> 5897932384625897933846225897933846225897338446225873338446225873338446
> 3.141592653 3.145926553 3.145926553 3.1492655533.11492655533.11492655
> 5897932384625897323846625897323846625897328466258997328466258997328466
> 3.141592653 3.141592653 3.141592653 3.141592653 3.141592653 3.1415926
> 5897932384625897932384625897932384625897932384625897932384625897932384
>
> ;)
Good one! The digits get quite confused, but I suppose it can't be
helped in a situation like this :)
Sam
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