RE: purpose of Granger rainbow chart?
RE: purpose of Granger rainbow chart?
- Subject: RE: purpose of Granger rainbow chart?
- From: Roger Breton <email@hidden>
- Date: Mon, 08 Mar 2010 07:28:23 -0500
Matthew couldn't have said it better.
Best / Roger
> On 8 Mar 2010, at 09:20, Jacob Rus wrote:
>
> > Because if so, it inherently has pretty severe tonal discontinuities,
>
> A Granger Rainbow is designed not to have any 'tonal discontinuities'
> but to show where things like profiles 'fail' and create them.
> Mathematically it is a completely smooth transition, when it has been
> through an imaging system it is not, and shows where the 'breakdowns'
> occur.
>
> best
> Matthew Ward
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