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Digital BW, The Print

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RE: [Digital BW] Re: Dynamic Range - picture describing terms

2002-03-26 by Austin Franklin

> Austin-
>
> In your diagram, I think we see the essence of the difference in
> expression between you and Martin.
>
> The key element being the smallest unit.
>
> It sounds to me as though you stand for the proposition that the
> smallest measurement is range comes from the existence of a "small
> unit of change" whereas it sounds as though Martin believes that the
> unit of change derives from ones ability to MEASURE change...with the
> implication that the regress of change are really infinite.
>
> Certainly with the quality of printers most of us are using, the size
> of the unit of steps must be measurable in some fashion (which tends
> to favor Austin's case) yet the measurements mentioned here, at
> least, seem to tend to show something approaching infinite (or more
> than can be measured?).
>
> Have I missed something?

Hi Tom,

Yes, I believe you misinterpreted the misinterpretation ;-)

From my understanding, Martin believes the bottom line is the smallest
signal, and the top line is the largest signal.  I believe the smallest
signal, as shown by diagram, is the smallest measurable difference, and
largest is the top line minus the bottom line.

Do you understand the distinctions?

Regards,

Austin

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