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How long is the coast of Britain?
I heard this morning that Benoît B. Mandelbrot died over the weekend. Dr. Mandelbrot developed the theory of fractal...
mehr als 15 Jahre vor
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R2010b – Image Processing Toolbox performance improvements
MathWorks shipped release R2010b last month. Today I want to mention several performance improvements made in the Image...
mehr als 15 Jahre vor
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The Two Amigos
I'd like to introduce Brett Shoelson as guest blogger for today. Many of you already know Brett from his work...
mehr als 15 Jahre vor
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Disconnected component labeling: part 2
Last week I wrote about a user's request to perform connected-component labeling with an unusual connectivity...
mehr als 15 Jahre vor
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Disconnected component labeling: part 1
A blog reader asked me recently for an enhancement related to connectivity. I found the request a bit surprising, and I...
mehr als 15 Jahre vor
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Fourier transforms, vertical lines, and horizontal lines
A reader asked in a blog comment recently why a vertical line (or edge) shows up in the Fourier transform of an image...
mehr als 15 Jahre vor
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Almost-connected-component labeling
In a recent post I demonstrated the use of bwdist (binary image Euclidean distance transform) to perform isotropic...
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Documentation for previous releases now available online
Thanks to Steve Lord I just learned that documentation for previous MathWorks releases is now available online. This is...
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Isotropic dilation using the distance transform
Brett recently asked me about an image processing problem. One step in the problem involved finding out which pixels...
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Visualizing regionprops ellipse measurements
The Image Processing Toolbox function regionprops gives you measurements of shape-based measurements of image regions....
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Complex surprises from fft
One of the discrete-time Fourier transform properties that many people learn is that if a sequence is conjugate...
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“DIM” terminology
I've been bothered recently by a MATLAB terminology question: How should we describe the dim argument in functions such...
mehr als 15 Jahre vor
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MATLAB xUnit 3.0.1
On June 16 I let you know about a new version of MATLAB xUnit that I posted on the MATLAB Central File Exchange. Since then...
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Plotting the DTFT using the output of fft
In my Fourier transform series I've been trying to address some of the common points of confusion surrounding this...
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MATLAB xUnit: new version available
03-Aug-2016 update: MATLAB xUnit is now in a different location. It is currently maintained by Paul Sexton. In...
mehr als 15 Jahre vor
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Goodbye Apple Hill 1!
Today offered more excitement than usual at MathWorks headquarters in Natick, Massachusetts. We got to destroy a building!...
fast 16 Jahre vor
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Negative frequencies
I recently asked for your advice about how to continue my Fourier transform series. I appreciate all the enthusiastic...
fast 16 Jahre vor
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The Fundamental Matrix Song
If you're into multiple view geometry and computer vision and you're looking for a funny, enjoyable 3 min 15 sec...
fast 16 Jahre vor
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Gulf of Mexico oil spill example on Art of MATLAB blog
Hi folks, You might be interested in Kelly's example showing how to get Gulf of Mexico oil-spill images using the...
fast 16 Jahre vor
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Survey on code reuse by MATLAB users
MathWorker Ned Gulley, whom some of you may know from his involvement in the MATLAB Contest, met Chris Scaffidi recently....
fast 16 Jahre vor
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Fourier transforms – where to go from here
Last fall I started posting occasionally about Fourier transforms. This topic causes much confusion, which is...
fast 16 Jahre vor
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MathWorks Academic Virtual Conference
Readers in academia might be interested in the upcoming MathWorks Academic Virtual Conference on May 11, 2010. Educators...
fast 16 Jahre vor
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MATLAB Contest
Hey folks, the Spring 2010 MATLAB Contest has started....
fast 16 Jahre vor
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More R2010a performance improvements in Image Processing Toolbox
Earlier this week I posted some relative speed improvement charts for some functions in the Image Processing Toolbox that...
fast 16 Jahre vor
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Performance improvements in R2010a
Last month we shipped R2010a, the first of our two releases this year. R2010a includes version 7.0 of Image Processing...
fast 16 Jahre vor
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More about variable names inside functions
Last week I wrote that I do not normally worry very much about whether a variable name inside a function I'm writing might...
fast 16 Jahre vor
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A practice that doesn’t make me cry
About a month ago, Doug posted a list of 10 MATLAB code practices that make him cry. (Not a pretty sight, I promise you.)...
fast 16 Jahre vor
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No units in the DTFT
OysterEngineer (I love that name!) asked some interesting questions in response to my last Fourier transform post,...
fast 16 Jahre vor
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Is Denoising Dead?
In the category of "eye-catching titles," the April 2010 issue of IEEE Transactions on Image Processing has an article...
fast 16 Jahre vor
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The DFT and the DTFT
h1 { font-size:18pt; } h2.titlebg { font-size:13pt; } h3 { color:#4A4F55; padding:0px; margin:5px 0px 5px;...
fast 16 Jahre vor
