Matt
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Question
How to solve mex function error caused by libstdc++ library version mismatch ?
Hello, When compiling a mex function, and running it right after, I get an error saying : Invalid C++ MEX-file 'myfun': /usr...
7 maanden ago | 1 answer | 0
1
answerWhat could alter the behavior of a c++ library in a mex function ?
This question was almost two years ago, but I came back to it and find out that evaluating my mex function in another process us...
7 maanden ago | 0
| accepted
Question
Effectiveness of implicit and explicit parallelization of fft2
Hi, I have many images on which I want to do some FFTs. I want to accelerate this image processing with multithreading. I am ...
9 maanden ago | 2 answers | 0
2
answersCreating an accurate Doppler spectrogram visualization
Well there is quite a long way to go from this figure to a fully functionnal app like the one you are showing ! What you need i...
ongeveer een jaar ago | 0
| accepted
Question
access time of data in cell array vs matrix
Hello I am doing operations (denoising/detection etc) on images and it seems that it is faster to store them in a cell array ra...
ongeveer een jaar ago | 2 answers | 1
2
answersQuestion
How to plot a surface not sampled on a gid/mesh
Hi Is there a function that could plot a 2D surface defined on non meshed points ? In other words, if I have a surface defined...
meer dan een jaar ago | 1 answer | 0
1
answerHOW TO FFT A NOISY EARTHQUAKE DATA
You can directly compute your signal FFT as star strider did and you will see that something is happening around 5Hz. An issue ...
meer dan een jaar ago | 0
How to randomize order of functions
Hi, By curiosity in what context do you need to do something like this ? You can store the functions handles in a cell and ca...
meer dan een jaar ago | 0
Question
Clib is unable to load an interface library
Hello, I have a c++ shared library that I want to call from matlab using clib. Unfortunately when doing so clim seems to be ...
meer dan een jaar ago | 2 answers | 0
2
answersQuestion
No out of memory error but matlab crash
Hello, I use matlab 2022a on ubuntu 20.04. These two codes crash matlab without generating an error message : ii=1; while 1...
meer dan een jaar ago | 2 answers | 0
2
answersObjective function is returning Inf or NaN values at initial point. lsqcurvefit cannot continue.
If you try this : modelFun(b0,x) the output has a nan. So you need to rework your function modelFun() in order to avoid this.
meer dan een jaar ago | 1
| accepted
A faster replacement for 'imfindcircles'
Il almost works but not quite because you can integreate a lot of signal in between 2 or 3 particles If you add another paramet...
meer dan een jaar ago | 0
How to sum values from a cycle
I think you are looking for this https://fr.mathworks.com/help/matlab/ref/sum.html angle = [30 25]; % 2 angles sum(angle) You...
meer dan een jaar ago | 1
A faster replacement for 'imfindcircles'
Hi Do you need a radius estimation of your circles ? And do you need to test a list of radius or do they all have the same know...
meer dan een jaar ago | 0
What could alter the behavior of a c++ library in a mex function ?
I am upping this question. Even Chatgpt could not help me. Who wants to beat the ai ?
bijna 2 jaar ago | 0
Question
Is it possible to display text in the console using latex expressions ?
Hello, I would like to display in the console grec letters using the latex syntaxe. Is there a way do this ? For exemple I ca...
bijna 2 jaar ago | 1 answer | 0
1
answerError with "input" function
The function codeA = input('Code of the first participant: ', 's'); creates a string variable in your environnement called c...
ongeveer 2 jaar ago | 1
| accepted
Plotting a 1D function by hovering on a 2D plot
You can use impixelinfoval to get the position of your cursor and a callback function to update the figure clear close all i...
ongeveer 2 jaar ago | 0
| accepted
Question
How to unpack mono12packed data images from preview
Hello, I am using the image acquisition tool to control a camera and I would like to know how to use preview properly when the...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
Camera using the genTL interface disappears when using imaqreset
Hello, My pc is connected to a USB camera that I want to control through the genTL interface. I have two types of unexpected b...
ongeveer 2 jaar ago | 1 answer | 0
1
answerQuestion
What could alter the behavior of a c++ library in a mex function ?
Hello, I am trying to interface a camera to matlab in a context of development of a microscope. The idea is to control it (c...
ongeveer 2 jaar ago | 1 answer | 0