Re: Grayscale perception
Re: Grayscale perception
- Subject: Re: Grayscale perception
- From: Nathan Duran <email@hidden>
- Date: Mon, 05 Dec 2005 15:16:59 -0800
- Thread-topic: Grayscale perception
> I think the only way to truly answer the question would be to give a large
> group of users a gray scale discrimination test similar to the Munsell test,
> and tabulating the results. It would also be necessary to generate a series
> of smoothly gradated gray values, as the eye may be more sensitive to smooth
> changes than it is to discreet samples. I do not know how one could create
> the latter test, as I know of no printers that can generate prints with more
> than 8 bits without dithering.
I'm not convinced of such averaging testing methods' accuracy, and I'm
especially un-fond of the idea of basing hiring decisions on their results.
Back when I was doing QC and retouching work for a lab, one of the best
color printers we had was severely color blind (don't remember which type of
color blindness he had; it was over ten years ago), and I rejected fewer of
his prints than any of the normally sighted folks'. I can only recall him
asking me for help with his filter pack once in the time that I worked
there, yet his work was consistently excellent. I'm sure he would have
failed any kind of standardized test miserably, but he was more than capable
of doing his job, and his gimpy, inaccurate eyes did in fact save both
myself and the lab a considerable amount of time on a regular basis.
Perception is a complicated thing not readily quantified.
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