Re: Colormatch vs Adobe 98
Re: Colormatch vs Adobe 98
- Subject: Re: Colormatch vs Adobe 98
- From: Chris Cox <email@hidden>
- Date: Thu, 31 Jan 2002 23:22:35 -0800
At 12:19 PM -0800 1/31/02, email@hidden wrote:
CIE colorimetry is based entirely on comparison of reflective
samples. It was never designed to handle emissive samples.
Sorry Bruce.
Most (if not all) of the experiments leading to the CIE standards
were light (emissive) based.
Your eye cannot tell the difference between an emissive image and a
reflective image -- when seen under the same viewing conditions
(absolute brightness, no flicker, same surround, etc.). (this has
been done at RIT, many times)
The common "monitor D65 is the same as viewing booth D50" comes about
mostly from the difference in absolute brightness. There are also
spectral differences that exaggerate the apparent color difference.
I've yet to see a fluorescent bulb that would give a decent D50
spectrum.
For those that want all the gory details, I recommend reading Mark
Fairchild's "Color Appearance Models".
Chris