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Location: UFOUpDatesList.Com > 2004 > Feb > Feb 11

Re: Whittlesea Australia UFO Photograph - Williams

From: Walt Williams <walt_williams.nul>
Date: Wed, 11 Feb 2004 06:56:06 +0000
Fwd Date: Wed, 11 Feb 2004 16:20:12 -0500
Subject: Re: Whittlesea Australia UFO Photograph - Williams


Hello All,

Another thought has struck me about the digital image and your
last post Amy & website. There are so many factors which can
affect the appearance of an object...

Back in 1998 while I was studying 'orbs' (Amy I simulated these
objects using small shiny beads of a known size dropped in-front
of camera while snapping shots in a psychorama). To support my
experiments I engineered a two axis digital imaging system which
was controlled by homebrew software I wrote. I was interested to
try to determine where in coordinate space 'orbs' were
positioned at time of image capture. I found certain mfr's
camera models store additional useful information with each
digital image. I employed Canon A5Z's for my experiments and was
able to access various interesting camera settings which are
auto-set by camera sensors via embedded microcontroller during
image acquisition and then stored in compact flash (CF) with
each acquired image. Amy, your note about 'Gibb's effect' was
news to me, however I suspect that it is the same thing as
envelope compression loss which if one has option might preclude
using RAW data format, i.e., no compression. Back to point
regarding camera 'science' data. Flash density (energy stuffed
into flash-tube), focus depth, exposure time and ambient light
level was stored with each image in CF, there was other stuff
too, but I don't recall?, in addition to manual camera settings
such as resolution and other modes, etc. Maybe Kodak cameras
also store this type information?

Canon provides developers with software
development kit (SDK) for their cameras.

These days I don't have time to drill-down to this level of
investigation, who knows, maybe somebody out there will be
interested to squeeze the stone? If the camera uses Cf, if the
traffic engineer still has the images stored on the camera/CF
that type data might still be available....camera model and a
call to Kodak developer support?

Best Wishes,

Walt Williams,

Director
Search for ExtraTerrestrial Visitation (SETV)
Northridge California, 91367, USA
http://www.setv.org

walt_williams.nul
===================================



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