[pure-silver] Re: OT: Color IQ Test
----- Original Message ----- From: "Jean-David Beyer" <jeandavid8@xxxxxxxxxxx> 
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Sunday, November 08, 2009 12:58 PM
Subject: [pure-silver] Re: OT: Color IQ Test



Jean-David Beyer wrote:

Elias Roustom wrote:

This is fun:
http://www.xritephoto.com/ph_toolframe.aspx?action=coloriq

I scored 36... zero is best score.
Based on your information, below is how your score compares to those of others with similar demographic information. 

     * Your score: 0
     * Gender: Male
     * Age range: Above 70
     * Best score for your gender and age range: 0
     * Highest score for your gender and age range: 1305
I was engaged in color perception work in the late 1970s and had to memorize the Munsell Book of Color (about 4000 color chips), and was tested for color-blindness many times and never came up any of the 
different kinds of color blindness.
My monitor is almost 6 years old, an NEC MultiSync LCD 1980SX driven by an ATI Rage chip on the mother board of this computer. The first time I took this test. Probably took me less than 10 minutes, but I did not time it. It is almost 4 PM and I did not have the fluorescent lights in 
the room turned on. Sunny outside.
Frankly, I doubt the quality of the monitor and the room lighting makes any difference since I was not asked to identify the colors. If I were, those considerations would matter. But for just ordering, no.
I wonder how much difference the monitor makes. The eye is pretty good at matching brightness and color where the two are adjacent but very poor for matching from memory. I think there is a trick to this test which is to carefully match each chip against those which appear close to it but it takes a lot of time. Now, having said that my score was 31 and is not much different than the scores I made a couple of years ago on the same test. In the past I have had very good color vision (telephone company tests) but it may have become degraded. Not so much as my once exceptional hearing which is now awful, but some change nonetheless. The histogram of error is of some interest. I will probably repeat this at work tonight, if I have time. There I am on a different system with a flat screen monitor. BTW, someone said they thought the color was better on CRT monitors. At work we have both very high quality CRT monitors (Sony mostly) and a variety of flat screen jobs, most of which are new. The flat screen things look very good on first glance but, in side by side comparison, the CRTs look more "real". They will all go pretty soon because they are getting old and Sony will stop making CRTs for them soon (if they haven't already). Many CRT monitors and TV sets are becoming unsuportable due to lack of picture tubes. I don't know what is going on in houses that do accurate color correction like the places that do film to digital transfer. I don't think the flat screens are good enough but there may be better ones than we use for normal monitoring. 

--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 
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