Steve on Image Processing with MATLAB

Image processing concepts, algorithms, and MATLAB

Posts 31 - 40 of 46

結果: 2010

MATLAB Contest 2

Hey folks, the Spring 2010 MATLAB Contest has started.... 続きを読む >>

More R2010a performance improvements in Image Processing Toolbox 3

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 >>

Performance improvements in R2010a 10

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 >>

More about variable names inside functions 14

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 >>

A practice that doesn’t make me cry 8

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 >>

No units in the DTFT 4

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 >>

Is Denoising Dead? 2

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 >>

The DFT and the DTFT 8

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 >>

The DFT and the DTFT

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Aliasing and a sampled cosine signal 23

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 >>

Posts 31 - 40 of 46