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Expanded gamut - when an idea's time has come, addendum
Welcome John the Math Guy blog fans. Today, you can color me embarrassed. Here is a quote from my recent post on the history of expanded gamut printing: "The earliest instance that I have found..." Did...
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The heyday of expanded gamut printing patents
In the previous installment of this series on the history of expanded gamut printing, I chronicled three times where augmenting CMYK with a few extra colors was independently invented. There was such...
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Do you remember a logo?
I stumbled across a quote the other day that I found interesting. This was on the Coca-Cola website:"There is no Pantone color for Coca-Cola red, but when you see it, you know it."Ah! To be tanning...
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How well do we remember color?
In a previous (and highly entertaining) blog post, I reviewed two studies that tested people on brand color recognition. The studies were not peer-reviewed, Nobel prize winning efforts, but enough...
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Looking for case studies!
Proof of concept has been established on my ColourSPC project. Over 561K color measurements have been compiled of roughly 3,000 production colors from nine different sources, including data from...
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State of the art in Extended Gamut printing
I had a series of blog posts on expanded gamut (parts one, two, and three) which were very popular. When I say "very popular," I of course mean that I have indirect evidence that there may have been...
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Which way is north in Munsell color space?
I wrote a blog post for Inkjet Insight about the Munsell color space. I don't want to spoil it for anyone, but the post is mostly just a gateway post to one about the CIELAB color space. For the Inkjet...
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The Color Name Conundrum
ISCC/AIC Munsell Conference, 2018, Keynote by John SeymourIt’s a common argument that my wife and I have. We are at a store or movie or coffee place, and I will comment on another woman’s blouse. “Hey,...
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International Day of Women and Girls in Science
Today is, of course, the International Day of Women and Girls in Science. I should clarify, As I write this post, it is the International Day of Women and Girls in Science. As you read this post, it...
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I'm forever blowing bubbles
Bubbles. What's not to love? There just have to be some patents on making the fun little things.The bubble mittA patent came to my attention today -- one where I can't help but say, "Gee whiz, I wish...
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A new color has been patented!
Milwaukee, WI. -- Rufus Chromaphile, spokesperson for John the Math Guy, LLC announced today the issuance of US Patent 10,244,600, assigned to John the Math Guy, LLC for a new color. "This patent...
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What city in Italy is the color magenta named after?
I have asked this question in my color classes, Inevitably, I get no answer, or answers like Rome? Venice? Flagstaff? I then ask some rhetorical questions: "When was the war of 1812?""Who is buried in...
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The Red Velvet Cake Effect
I recently stumbled upon a video this week where the speaker described experiments where the presence of color tricked participants into tasting flavors that weren't there. The idea seems preposterous....
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Where did my indigo? (part 1)
I answered a question on Quora recently. I am so proud of my astute answer that I decided to expound on it to make it into a blog post.The question: What is the true color of indigo?In today's blog...
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The allure of tweeny colors
I recently saw an interesting question on Quora about colors that are positioned between the basic colors. Here is the question, and the answer I gave.Question: “Why are those color hues so intriguing...
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Creating a circle that goes through three points on your lawn
I get some off-the-wall questions once in a while. Today, I got an off-the-porch question and decided the answer might make a good blog post. I'm probably wrong about that, but here goes.My friend Dark...
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Where did my indigo (part 2)
I answered a question on Quora recently. What is the true color of indigo? There are many answers to this question. In my last post, I gave one of them: indigo is a dye. This blog post expounds on...
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Why are Bermuda onions called "red" onions?
Quora often provides me with suggestions for blog posts. I read a question today that filled me with such indignation that I had to answer it, and had to post this to my blog as well.Question: Why are...
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Music soothes the savage Lactobacillus helveticus
I'm sure you saw the news item. The one about how exposing cheese to different types of music during its formative years can give cheese distinctive flavors? It was determined that hip hop music is...
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What is the most accurate color wheel?
I received a question the other day. This happens to me all the time. Just a thought here... Maybe I would get fewer questions if I pretended to be ignorant rather than all this pretending to be an...
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An Easter egg in the film "Die Another Day"
Ok... so let me make this clear from the start. I am not a film buff, nor do I claim any more than superficial expertise in film. If you want the honest truth (as opposed to my usual dishonest truth),...
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Is metamerism a big issue in print? (Part 1)
In January 2020, I spoke that the Printing Industry of America Color Conference. This colorful event is sponsored every year by the PIA in gorgeous San Diego where the weather is always gorgeous. Next...
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Is metamerism a big issue in print? (Part 2)
This is part 2 in a series of blog posts that recap my presentation on metamerism at Color 20. If you were actually looking for the first part, the part where I set up the characters and give the back...
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Orange chestnuts
I stumbled upon a YouTube video the other day that caught my attention: Color Theory for Noobs. Cute title. 1.8 million views. The intro graphics look cool. Maybe I can learn something about color...
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