Category Archives: Color and Vision

Visual Acuity and Color Confusion

I’ve been working on a project at work that involves visual acuity. We’re basically asking the question, “How easy is it to notice the difference between two parts of an image with the assistance of color?” As part of the … Continue reading

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Checking in from the Golden State

It’s almost 11:00PM by way of 2:00AM. I should be more tired, but I’m not . . . or maybe I am. I can’t tell. As soon as I finish watching “The Kids Are Alright,” I’m going to bed. Hopefully, I won’t wake … Continue reading

Posted in CGM, Color and Vision, General, Reluctant Triathlete, Running, Travel | 1 Comment

Thoughts from a Thursday Morning

In honor of the company meeting earlier this morning, here are some of the things I’ve learned and thoughts I’ve had this morning . . . bullet point style: I can’t decide whether Arcade Fire’s new album, “Suburbs,” is completely, utterly pretentious and … Continue reading

Posted in Baseball, Book Notes, Color and Vision, Diabetes, Health Care, Life Lessons | 3 Comments

The Free Advertising Issue

It’s time for another hodge-podge posting. This time, I’ll just give random shout-outs. Image Engineering: Dietmar Wueller has a great company that makes test equipment, targets, and software. I’ve had the good fortune of working a booth in a trade … Continue reading

Posted in Color and Vision, Cycling, Fodder for Techno-weenies, Photography | Leave a comment

Electronic Imaging: 3D

I am attending Electronic Imaging 2009 in San Jose. Well, today was my last day here. Tomorrow I return to snowy Massachusetts. (It’s currently about 60º here.) But I’ve had my fish taco fix for another year, and I’m excited … Continue reading

Posted in Color and Vision, MATLAB, Software Engineering | 1 Comment

Article on High Dynamic Range Imaging and MATLAB

Peter Webb, one of my coworkers, published an article entitled “Rendering High Dynamic Range Images on the Web” in the July 2008 issue of the MATLAB Digest. Enjoy!

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Scientific American article on digital fakery

Here’s a follow-up to my dispatch from January about Hany Farid’s presentation at Electronic Imaging on detecting digital manipulation of images. Dr. Farid has written an article on digital forensics in this month’s issue of Scientific American. (Thanks to Steve … Continue reading

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Electronic Imaging 2008: Your eye and novel single photon detectors

I’ve been telling everybody about this particular paper presentation at Electronic Imaging, because I think the implications are pretty cool. It’s yet another presentation where electrical engineers and image processing folks are treating machine vision more like human vision than … Continue reading

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Electronic Imaging 2008: Color Universal Design (and a MATLAB-based simulator)

Note: Here’s another dispatches about what happened at the Electronic Imaging symposium even though I’m back from San Jose. They will continue until I run out of useful things to write or something more interesting happens in my life. Yasuyo … Continue reading

Posted in Color and Vision, Computing, MATLAB | 4 Comments

Electronic Imaging 2008: Digital Image Forensics

Now that Steve has linked to me again, I guess it would be timely to post something from the Electronic Imaging symposium. Let’s start with something fun: digital image forensics. I find this topic really interesting for a few reasons. … Continue reading

Posted in Color and Vision, Computing, Fodder for Techno-weenies, Photography | 3 Comments

Me Gusta Tacos y Burritos

I’m full. Sated. Happy. Fish tacos, my friends. That’s what has brought me to this wonderful place. Batter-fried fish on corn tortillas with salsa, finely cut cabbage, and some secret ingredient that Rubio’s puts in their “Pesky” tacos. With tortilla … Continue reading

Posted in Color and Vision, OPP, Photography, This is who we are, Travel, USA | 1 Comment

Quanta from Dr. Color’s Assistant: METACOW

Sorry for not posting anything color-related recently. I’m very busy with something important (but not very interesting) right now. The colorful language will return soon. Nevertheless, here’s a quick color-related post. METACOW: “A Public-Domain, HighResolution, Fully-Digital, Noise-Free, Metameric, Extended-Dynamic-Range, Spectral … Continue reading

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Film-like tone mapping

Every once and a while someone will ask me why I still use film. First of all, I have a film camera, and to buy a new one would be a significant chunk of cash. But that’s not the main … Continue reading

Posted in Color and Vision, Computing, Fodder for Techno-weenies, MATLAB, Photography | 1 Comment

Ask Dr. Color’s Assistant: Tone-mapping in MATLAB

How does the tonemap function in the Image Processing Toolbox product work? Tone mapping, or tone reproduction, compresses the enormous amount of illumination data in a high dynamic range image to something more suitable for output on a medium that … Continue reading

Posted in Color and Vision, Computing, Fodder for Techno-weenies, MATLAB, Photography | 2 Comments

Dr. Color’s Assistant goes back to his notes

It’s Friday here at The Metrowest Homeopathic Imaging and File Rehabilitation Center, the day when I usually spend part of my time on 20% projects. [1] But I’ve basically been working on the results of my last such project full … Continue reading

Posted in Color and Vision, From the Yellow Notepad, General, Life Lessons, Software Engineering | Leave a comment