Hey folks, the Spring 2010 MATLAB Contest has started.... 続きを読む >>
Hey folks, the Spring 2010 MATLAB Contest has started.... 続きを読む >>
Earlier this week I posted some relative speed improvement charts for some functions in the Image Processing Toolbox that got faster in R2010a. Below are some more charts. I've included... 続きを読む >>
Last month we shipped R2010a, the first of our two releases this year. R2010a includes version 7.0 of Image Processing Toolbox, a major update. For the last several releases we've been... 続きを読む >>
Last week I wrote that I do not normally worry very much about whether a variable name inside a function I'm writing might be the same as the name of a function somewhere else. Unfortunately, I... 続きを読む >>
About a month ago, Doug posted a list of 10 MATLAB code practices that make him cry. (Not a pretty sight, I promise you.) One of the bad practices was using the name of a MATLAB function as a... 続きを読む >>
OysterEngineer (I love that name!) asked some interesting questions in response to my last Fourier transform post, which concerned the relationship between the discrete-time Fourier transform... 続きを読む >>
In the category of "eye-catching titles," the April 2010 issue of IEEE Transactions on Image Processing has an article entitled "Is Denoising Dead?" According to the abstract, the article asks... 続きを読む >>
It's finally time to start looking at the relationship between the discrete Fourier transform (DFT) and the discrete-time Fourier transform (DTFT). Let's look at a simple rectangular... 続きを読む >>
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One challenge of teaching Fourier transform concepts is that each concept can be (and is) interpreted and explained in many different ways. It isn't always obvious how the different... 続きを読む >>