This is a "small world" story for a mid-summer Friday. Outside work, family, and book writing, I like to play a little tournament chess. I'm just your middle-of-the-pack club player trying... 続きを読む >>

I've always had a kind of amateur's fascination with computational geometry, and computational geometry problems do arise in image processing from time to time. I've had just enough experience to... 続きを読む >>

Last week I wrote about our desire to reduce the memory used by bwlabel. I also wrote about other issues we hoped to address: The... 続きを読む >>

One of the changes we made to the Image Processing Toolbox for R2009a was partially inspired by comments received on this blog. Specifically, several blog readers complained about the... 続きを読む >>

Sometimes readers will tell me they had a hard time reproducing results from one of my blog posts, so let me tell you the easiest way to do it. Almost all of my posts that show MATLAB examples have... 続きを読む >>

I would like to remind readers about how I handle comments on this blog. (Please note that each MATLAB Central blog author handles comments somewhat differently.) I moderate all comments,... 続きを読む >>

Matt Whitaker asked me in a blog comment recently about the references I keep on my own shelf. Well, first of all I seem to keep fewer things on my bookshelves as the years go by. When I... 続きを読む >>

In January 2006, the first month of this blog, I wrote the following: "Section 5.11 of Digital Image Processing Using MATLAB covers spatial transformations. I'm interested in expanding this... 続きを読む >>

Today is the final post in my continental divide series. In earlier posts I have used the problem of computing the US continental divide as a vehicle for exploring data import, image... 続きを読む >>

Today's post in my continental divide series demonstrates the final computational step and shows one procedure for visualizing the Pacific and Atlantic catchment basins. In my previous... 続きを読む >>