On Thu, 21 Dec 2006 04:23:05 -0800, tontoko wrote:

In the commercial version of Stereographer, it is available to
synthesize the stereograph having 700x500 pixels ;-)

Which is 350 kilopixels which is a tenth the resolution of an obsolete
point-and-shoot and not sufficient for more than postage-stamp sized
prints if appearance is an issue.

J. Clarke wrote:
On Wed, 20 Dec 2006 12:00:27 -0700, Bill Funk wrote:

On 19 Dec 2006 23:54:04 -0800, "tontoko" wrote:

Surely there isn't parallax enough to cause stereoscopic effect since
every star or galaxy has virtually "infinite" distance from the
camera.

My software converts the dimness of the image to the distance from
the camera.

Are you trying to say that the dimmer a subject is, the farther away
it is? I don't think many astronomers will agree with this.
Practically the galaxy or nebula is thought to have some fractal
structure and it causes blurry on the image taken by the camera when
the part of it is more distant from other parts.

Surely, the DOF at the distance of the subject is great enough to
make the entire subject in acceptable focus. See your above line
about the subject being virtually infinitly far away. So, each part
of the subject will be virtually the same distance from the camera,
so even a virtually non-existant DOF will render the entire subject
in acceptable focus.

It looks like he's creating false depth of field along with the false
dimensions. His tool can make pretty pictures but it doesn't come
close to reflecting reality. He doesn't give you what you would get
taking a stereo pair from two widely different positions with the aid
of a faster-than-light starship.

Further the image size his software produces seems to be pretty
small--for 50 bucks I'd want something that could generate a pair that
I could hang on a wall and 350 kilopixels doesn't cut it.

The following
image is an example of synthesized stereograph for a
fractal structure. As seen on it, more detailed, more distant it
looks like.

http://www.unmannedspaceflight.com/i...e=post&id=2049

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)

--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)