From: Doug Jones (random@qnet.com)
Date: Sat Jul 08 2000 - 17:34:28 MDT
Spike Jones wrote:
>
> > Zero Powers wrote: I'm thinking I'd really like to be able to see the entire
> > EM spectrum. But it would probably have to come with an on/off switch or
> > radio dial-like selector. Seems like if you saw the entire spectrum *at the
> > same time*, it would be pretty difficult to differentiate anything. Perhaps
> > everything would look bright white?
>
> If you put it on a logarithmic scale with frequency on the horizontal, the
> EM spectrum is infinite in both directions. You would need a device
> to filter one octave at a time. spike
I've gotten interesting results by combining an IR image with a normal
light image in a novel way- substituting the IR channel for the
luminance in an HSL image instead of one of the RGB channels. This
doesn't introduce huge color shifts, but black (opaque) glass becomes
gray, blue skies are dark with vivid blue clouds, and plants are light
green. I'll post a trio of pics on alt.binaries.pictures.misc (I gotta
make a webpage one of these days).
Similarly, a color image + thermal IR would have normal color balance,
but the hot spots would be bright- giving people a raccoonlike effect, I
think, since noses are cold and eyeballs hot...
-- Doug Jones Rocket Plumber, XCOR Aerospace http://www.xcor-aerospace.com
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