Description:
The MathWorks calculation and visualization package.
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extract regions detected by watershed segmentation
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Hello,
I have found this code in image processing toolbox of matlab for image segmentation through watershed function:
[link]
Really, I gaven't understood the code, and I want to extract regions detected after segmentation with the function watershed and represent each region with its dominant color. So can you help me?... more »
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Imrect ButtonDown callback?
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Hello everyone! Is there a way to write a button down callback for an imrect object? I keep searching online but I was not able to make any of the proposed solutions work (e.g. setting the 'NextPlot' property of the axes to 'replacechildren', or setting 'HitTest' to 'off' - actually imrect does not seem to have a HitTest property, why? or a ButtonDownFcn event, instead of only a positionChange event?). Only the WindowButtonDownFcn callback still works when clicking inside the imrect, but this makes things a bit complicated, having to figure out inside which of the imrects the click was made.... more »
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Using matlab with c#
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I have a matlab program in which temporary variables are stored into a mat file. when i run the corresponding dll file from c# i get the following error:
MWMCR::EvaluateFunctionError unable to write file myVar.mat permission denied.How do I save into the mat file?
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ecg data
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Dear Sir\Madam,
I'm a student of Medical Electronics who is interested in doing
my project related to ECG. My interest is in time-frequency analysis
of normal and abnormal ECG signals using FFT using MATLAB Tool. I kindly request you to send me the data for normal and abnormal ECG
signals.... more »
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Subgraphs in graphviz4matlab
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I am using graphviz4matlab toolbox of matlab to display graphs in matlab using graphviz in matlab. Can anybody tell me how can I create a subgraph or cluster of nodes in graph displayed in matlab using graphviz4matlab..?
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measuring the diameter of a coin
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how can I measure the diameter of a coin from the filter with sobel edge detection?
I already have around the circumference of my object (coin) now wanted to know how this was diāmentro.
thanks
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export_fig not showing pcolor graphic
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I'm running r2012b on a SUSE linux86 system.
Export_fig is printing my graphic beautifully except the last graphic that I plot up isn't showing up. If I have a 4 panel graphic then the 4th panel is blank. If I change nothing but just comment out my 4th panel then the 3rd panel is blank. This problem appears specific to printing to pdf.... more »
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Value classes - do you use them? also syntax questions
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I posted the below on Answers but got no responses, perhaps the newsgroup is a better forum to discuss this :)
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So I can't really recall ever creating a value class, all mine seem to be handle classes. Is that the same as your experience? Unless I'm completely missing something, using value classes seems to be a bit ungainly, because you always have to do two steps like this:... more »
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How to calculate chi-square statistic for a distribution
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Dear Support,
I am fitting a distribution to data and trying to perform chi-square goodness-of-fit test.
I have calculated the likelihood values and wanted to perform goodness-of-fit test
However, having read through the Help menus, I tried to run the script below but am getting error:
x=claims; [h,p,stats] = chi2gof(X,'cdf','weibull',npar ams,2)... more »
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Filtering noisy data
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Hi, I am having trouble completely filtering out some force data, because I believe the noise is at the same frequency as the data I need. So far I have been using a butterworth 4th order filter like so. This works for running and walking force data, but now I am working with roller skiing.
sampling_freq = 1000;... more »
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