Re: ColorVision experience..(related question)

[Gary C Lasater <glasater@pocketinet.com>]

I do have an inkling of understanding of what you wrote. Dangerously so! Thank
you for your response. My situation right now is trying to communicate with a
Windows system from a Mac. I send jpeg images into a Windows system and the guy
who gets them is having problems with the pictures being too dark. He is asking
me for help.
At one time I read an article by Bruce Fraser talking about the translation
from a Mac system to Windows and gamma of the two systems.. Can't remember
where I found the article and did check Creative Pro. No luck. Now I am being
asked for some expertise that I have some knowledge of but trying to explain
may be a bit difficult to the person on the receiving end. Am trying to set up
a system where the guy on the other end is getting a good/great image. Plus
dealing with the press person in the whole mix. I wish I could afford Mr.
Tobie's services and his knowledge base is terrific. However, I am on the low
end of the pay scale and am just trying to do the best I can. Thanks for the
information and I will continue to struggle on.
Donna

Frank Mares wrote:

>  D
>
> Donna,
> Colorimeters measure amounts of the  three primary colors that specify a
> color stimulus. The CIE tristimulus  values are called X,Y & Z. Colorimeters
> measure these values by using broadband filters and because of this
> colorimeters cannot provide spectral reflectance data, but they are less
> expensive and sometimes more portable(no true with regards to the
> Spectrocam) They do a good job with monitor calibration and profiling with
> the appropriate software(Optical, Prove It! etc,)
> Spectrophotometers (reflectance types like Spectrocam) tend to measure the
> amount of light that is reflected by a surface (paper) via measuring the
> wavelength of the reflected light after it has been illuminated (via Xenon
> ,in the case of the Spectrocam). CIE tristimulus values can also be
> therefore measured and with appropriate software(Profiler Pro,
> MatchBox,etc.) these values can be stored and used to create paper profiles.
> Hope this helps!
> .
>
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