The March 2009 issue of IEEE Signal Processing Magazine landed in my mailbox last week. It contains a special section on digital forensics. The special section is jam-packed with image processing,... 続きを読む >>

It's not always easy to find the right level of documentation for a particular function, as I was reminded by this recent sci.image.processing post slamming the doc for imregionalmax and... 続きを読む >>

One of the changes we made to MATLAB in R2009a was to improve the way imread handles multipage TIFF files. (A multipage TIFF file is one that contains multiple images. I'm not sure, but I think... 続きを読む >>

Earlier this week I posted an update to my MTEST unit test framework on the File Exchange. I wasn't completely happy with my assertion function for comparing floating-point numbers using a... 続きを読む >>

MATLAB R2009a was released earlier this month. There are several things in this release, both in MATLAB and in the Image Processing Toolbox, that I plan to write about during the next couple of... 続きを読む >>

I recently heard a MathWorks application engineer (hi, Brett!) say that a short little paragraph in the regionprops documentation was very "powerful." Here it is: The function ismember... 続きを読む >>

Last August I posted an example showing how to display patch objects transparently over an image. I meant to follow that up with another post showing a couple of ways to display one image... 続きを読む >>

I've seen several situations recently in which a user couldn't figure out how to get their data into MATLAB, and it turned out that the data was in a form that could be handled by the... 続きを読む >>

03-Aug-2016 update: MATLAB xUnit (formerly MTEST) is now in a different location. It is currently maintained by Paul Sexton.
I just posted MTEST on the MATLAB Central File Exchange. MTEST is a unit... 続きを読む >>

Today I want to know if you've heard of an operation sometimes called the feature transform, and whether you've had a particular application for it. But first, greetings to those who... 続きを読む >>