Re: Measurement Geometry
Re: Measurement Geometry
- Subject: Re: Measurement Geometry
- From: Steve Kale <email@hidden>
- Date: Thu, 16 Feb 2006 18:05:01 +0000
- Thread-topic: Measurement Geometry
Thanks for that. I'm not sure, though, how it addressed the question of why
an integrating sphere spectrophotometer is better for measuring colour
samples on canvas or other course materials.
(I agree I misspoke when I mentioned the position of the standard observer.
The issue is one of illumination.)
> From: Ken Fleisher <email@hidden>
> Date: Thu, 16 Feb 2006 10:06:49 -0500
> To: Steve Kale <email@hidden>
> Subject: Re: Measurement Geometry
>
> On Feb 16, 2006, at 5:43 AM, Steve Kale wrote:
>
>> I'd like to here the details of this. I would have thought the
>> position of
>> the "standard observer" in relation to the media is what it is unless
>> you
>> have good reason to suggest that your actual observers will be
>> positioned
>> differently...
>
> Actually, the standard observer is not the issue. For more details,
> here are some good resources to get you started. After reading them,
> come back with your questions:
>
> http://www.colourware.co.uk/cpfaq/q3-11.htm ( a good "quick-start"
> explanation )
>
> http://www.hunterlab.com/color_theory.php
>
>
> In particular, read the three documents titled:
>
> "Instrument Geometries and Color Measurements Part I: 45/0 and 0/45"
> "Instrument Geometries and Color Measurements Part II: Diffuse/8"
> "Instrument Geometries and Color Measurements Part III: Comparison of
> 45/0 and Diffuse/8 Measurements".
>
> Ken Fleisher
>
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