Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB


Steve on Image Processing with MATLAB has been archived and will not be updated.

Posts 1 - 10 of 62

Results for: 2009

Discrete-time Fourier transform (DTFT) 10

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 >>

Image Enhancement: A Medley 3

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 >>

A very different take on the Fourier transform 5

This is my silly season entry (from...

Continuous-time Fourier transform of windowed cosine 10

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 >>

Continuous-time Fourier transform basics 12

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 >>

Example of Fourier terminology confusion 3

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 >>

Fourier transform visualization using windowing 32

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 >>

Fourier transforms 25

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 >>

Extracting dot locations from a graphic 11

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 >>

Maybe truecolor is OK after all 2

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 >>

Posts 1 - 10 of 62