Category Archives: File Formats

Mo Pixels, Mo Problems

Technology might be making the world a smaller place, but the data we’re creating and using is only getting bigger and bigger. Recently a few customers independently contacted me with problems reading their large DICOM (medical) and NITF (national intelligence) … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies | 1 Comment

My Insulin Pump Hacker Name is “Glux0se”

Victoria wrote an excellent piece on her site about what’s become known as “pumphackingate.” In it, she gives a brief recap of the facts and some of the reactions that have appeared on other blogs. Here’s an even briefer recap, … Continue reading

Posted in Computing, Data-betes, Diabetes, File Formats, Fodder for Techno-weenies | Leave a comment

JPEGmini v. The Man

UPDATE: Be sure to read the comments. There’s no new file format. Real low on the world’s priority list is a patent-pending image compression algorithm and format that attempts to replace JPEG. (I’ve written why before, more than once.) But … Continue reading

Posted in File Formats, Fodder for Techno-weenies | 3 Comments

New Video File Formats

File formats come, and file formats go. Strike that last part. File formats never really go away. People just stop storing data in them, and vendors stop supporting the formats in their products. Eventually the data is just a bunch … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies, Photography, Video | Leave a comment

The “Blow Stuff Up” Conference

In case you wondered what that post from earlier today was all about, perhaps a picture will help: Click for larger . . . This envelope came in the mail yesterday. I don’t know who put me onto this mailing list, but I’m … Continue reading

Posted in File Formats, General, This is who we are | Leave a comment

A Menagerie of Image File Formats

This is a follow-up to my recent post on parsing NITF files that contain JPEG data. It’s basically a crash course into the organization of the guts of image file formats. If I were ever asked to be an expert … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies, Life Lessons | Leave a comment

NITF + JPEG

I’ve recently been working with streams of JPEG data inside of NITF files. Given my experience supporting I/O involving DICOM files that contain JPEG-compressed imagery, I was extremely surprised to learn how difficult it is to read JPEG from “National … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies, Life Lessons | 1 Comment

Security Vulnerability in CDF, plus a MATLAB Fix

The CDF folks at Goddard Space Flight Center have identified a security vulnerability — a buffer overflow to be specific — that can enable the execution of arbitrary code on your machine if you open a particular malformed file. If … Continue reading

Posted in Computing, File Formats, MATLAB | Leave a comment

Beyond JPEG

This dispatch is a bit of a valediction for me. Since early 2000, I’ve been one of the software engineers on the Image and Scientific Data Formats team at The MathWorks. I’ve learned a lot about an area of technical … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies | 3 Comments

The JPEG Family Circus

The discussion in the comments of my recent article about HD Photo (a.k.a. JPEG-XR) got me thinking about all of the different beasts that go by the name “JPEG.” JPEG: What most of us consider to be “JPEG” is just … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies, Photography | 8 Comments

Microsoft HD Photo

For my 9-5, I wrangle file formats, making it possible for people to read images into MATLAB and then do something useful with them. I’m always on the look out for what’s new, and there’s always something new. (I only … Continue reading

Posted in Computing, File Formats, Fodder for Techno-weenies, Photography | 5 Comments