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Re: Accurate color from the camera - who wants it!
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Re: Accurate color from the camera - who wants it!


  • Subject: Re: Accurate color from the camera - who wants it!
  • From: Andrew Rodney <email@hidden>
  • Date: Sat, 14 Jul 2007 08:39:22 -0600
  • Thread-topic: Accurate color from the camera - who wants it!

On 7/14/07 6:16 AM, "Jack Bingham"  wrote:

> I tend to think we are ignoring a rather large group of photographers
> here who make their living shooting products for reproduction. In
> this case we actually want "accurate" output color. My simple
> definition of accurate is in the eye of the check holder. The red
> sweater has to match or there are so many returns and the customer
> comes back to complain about the match and yada yada yada.

That's STILL not scene refereed which IS accurate (measured, defined) color.

Define accurate Jack (without the quotes). OK, you have to use some metric
like a measurement otherwise we're just talking about what a client or end
user feels matches. And even when color match, the number often don't. We
can thank our friend metamerism for this. And every color match? Matches to
what delta? If so, how do we decide this short of measuring the two?

Pleasing color can and often is the appearance of the output referred color
producing what appears to be a match to the scene but we simply can't
measure this success we can only agree that they match.

IF you want to say that using sound color management and color management
products produces matching color that client and creator agree match, OK I'm
fine with that. But to call that accurate is a stretch since its up to
interpretation and there is no way to prove it using scientific testing
methods.

Accurate:

1. In exact or careful conformity to truth, or to some
      standard of requirement, the result of care or pains; free
      from failure, error, or defect; exact; as, an accurate
      calculator; an accurate measure; accurate expression,
      knowledge, etc.

2: (of ideas, images, representations, expressions)
        characterized by perfect conformity to fact or truth ;
        strictly correct; "a precise image"; "a precise
        measurement" [syn: exact, precise]

As the Chinese proverb says: The first step towards genius is calling things
by their proper name.

Andrew Rodney
http://www.digitaldog.net/


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