In the last two posts in my Fourier transform series I discussed the continuous-time Fourier transform. Today I want to start getting "discrete" by introducing the discrete-time Fourier... read more >>

Can I post two silly-season items in one day? Hey, it's my blog, so why not! One of my posts that received the most comments was the one about image processing in the movies. Since so... read more >>

This is my silly season entry (from... read more >>

Last week I showed a couple of continuous-time Fourier transform pairs (for a cosine and a rectangular pulse). Today I want to follow up by discussing one of the ways in which reality... read more >>

In my planned (well, partially planned) discussion on Fourier transforms, I'll focus on three of the four types I listed in my November 23 post: ... read more >>

This exchange of comments between Cris and me (see comments 11-16) is a good example of the kind of terminology confusion that surrounds Fourier transforms. Cris and I both have a background in... read more >>

When I dipped my toe into the Fourier transform waters last week, the resulting comments and e-mail indicated there is a lot of interest in tutorial material and explanations. I'm willing, ... read more >>

Confession time. When it comes to writing about Fourier transforms on this blog, I'm a chicken. (For my readers not familiar with English slang, chicken in this context means a cowardly... read more >>

I was looking at the image below on a web page recently and I decided to extract the locations of all the dots. I thought the procedure might make a nice little end-of-the-week how-to... read more >>

Yesterday I posted that I was looking for a replacement for the term truecolor. (I won't repeat the explanation here; take a look at the original post.) Quite a few readers posted interesting... read more >>