John the Math Guy
Applied math and color science with a liberal sprinkling of goofy humor.
Wednesday, January 29, 2014
Gee whiz, it's cold!
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A friend posted on Facebook something to the effect that the temperature outside had risen from 2 degrees all the way up to 4. Being a math...
Wednesday, December 18, 2013
76 shades of gray, part 1
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The book got it wrong. E. L. James missed 26 of the shades of gray. And the CIE? You know, the International Commission on Illumination, t...
2 comments:
Wednesday, December 4, 2013
Visual accuity and color
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As the only John the Math Guy around, you can imagine that I get a lot of questions. I do. Thousands of questions a month. Normally they st...
2 comments:
Wednesday, November 20, 2013
What difference does it make? (part 2)
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Let's see... where did I leave off in part 1 ? Our hero, Albert Munsell left us with a posthumous challenge. He developed this wonderf...
4 comments:
Wednesday, November 6, 2013
What difference does it make? (part 1)
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I want to talk about the difference between two colors, but I need to lay some background first. This background is useful for understandin...
3 comments:
Wednesday, October 30, 2013
Tolerances for spot colors
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There is a little bit of a hole in the most recent version of the ISO spec for flexo printing [1] . I will explain the hole, discuss my ana...
5 comments:
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