This is the second in a short series on using lookup tables for binary image neighborhood operations. See the first post for the basic idea. The Image Processing Toolbox has two... 続きを読む >>

Over the past few years I've been fascinated to see the progress in making text look better on the screen. (I should confess right away that I know nothing about typography, and almost nothing... 続きを読む >>

Today I'm introducing a short series about using lookup tables to implement neighborhood operations in binary images. This is a fast implementation technique that works for small... 続きを読む >>

I grabbed the latest issue of IEEE Signal Processing Magazine out of my mailbox the other day. As I was flipping through the pages I noticed a familiar face: Doug Williams, who is the Special... 続きを読む >>

When the new releases come out, I like to peruse the release notes for MATLAB. Loren and the Desktop team have already started writing about the new features in their blogs, but I thought I'd mention... 続きを読む >>

Every so often someone asks in comp.soft-sys.matlab for a "function like Image Processing Toolbox function foobar that works in 3-D." If I happen to see the post, I will follow up, explaining... 続きを読む >>

Last week The MathWorks released R2008a, the ninth in a series of six-month releases. (If there's an equinox coming up, look for a new MATLAB® release!)
Here are some of the highlights especially... 続きを読む >>

When we work on improving the speed of image processing functions in MATLAB, we are naturally interested in getting timing measurements. And we know customers are often timing their own code,... 続きを読む >>

I would like to announce new procedures for comments on this blog, as well as for associated e-mail traffic. First, post commenting is now in "moderate" mode, meaning that new comments will... 続きを読む >>

Blog reader André recently asked me how to count the number of times each color appears in an image. One short solution involves optional output arguments from the function... 続きを読む >>