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Digital BW, The Print

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RE: [Digital BW] Thoughts about Imaging

2002-04-05 by Austin Franklin

Hi Roy,

> On the contrary, Austin has
> > maintained that his interpretation of it has been in common use
> up until the
> > internet became popular (which is what, 8-12 years?)

Not really.  I maintain that the Internet hasn't helped misuses and
misunderstanding of a lot of things...  I believe the term dynamic range was
misused in this "field" long before the Internet.

> He's indicated that his background is
> audio,

I do have A background in audio, but my "major" background is in imaging (as
well as mobile robotics/Artificial Intelligence).

> and the one
> reference book is audio.

Actually, it's a digital signal processing reference book...and the EXAMPLE
used was audio.

> First,
> "The Negative" by
> Ansel Adams talks quite definitely about dynamic range.

Yes, and I believe, what was quoted at least, does agree with what I have
said.  You obviously interpret the same words differently ;-)  We can
discuss this further if you like.

> Second, "Real World Scanning
> and Halftones"
> by Blatner, etc.

And...the description of dynamic range in that book completely agrees with
my stated definition:

"dynamic range describes the actual limits of how many tones the scanner can
really differentiate from light to dark".

Austin

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