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How can I extract the crack from the noise and human drawn grid lines?
the crack detection topic is not a new subject... maybe you should try one of these solutions (quick search) : Crack detection...
2 days ago | 1
How can I make the surface plot (surf) look less shifty between plotted distributions?
hello It took me some time to understand what causes these "slides" what was a bit annoying me is that your X data (dia matr...
5 days ago | 0
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Why the length of power spectrum is fixed at 4096 when the signal's length varies ?
hello in "auto" mode (i.e when you don't specify the frequency resoltion) , the fft is done with 4096 this is visible in the...
6 days ago | 0
| accepted
setting xaxis labels to only integers
hello using your data I tried to reproduce your plot in figure 1 the modified plot is figure 2 hope it helps ! x_mm = [-...
6 days ago | 0
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Blood vessel identification from an OCT image
let's try something with edge approach : nice but how do you then isolate the black thicker line as the identified blood vessel...
8 days ago | 0
Fit surface to curves
well , maybe with boundary (shrink factor = 1) and trisurf we have a simple solution - maybe not perfect but visually quite clo...
14 days ago | 2
| accepted
I must take this plot I have and adjust it so the line starts at different points within the plot and I'm not sure how to do so
hello @ryan maybe this ? Nb that Imodified quite a bit your original code for example as we assume the x axis is the reduce...
16 days ago | 0
Undefined function 'findpeak' for input arguments of type 'double'. Error in untitled4 (line 40) [peaks, t] = findpeak(pred);
it's findpeaks with an "s" at the end (missing in your code) findpeaks - Find local maxima - MATLAB
21 days ago | 0
How to integrate over a surface with non-uniform spherical coordinate?
hello seems to me in the first method you are applying sin(theta) twice (one only is needed) integrand = P.* sin(theta) weig...
1 month ago | 0
I have a .mat file that is a 2x1000 matrix. I want to get the 2 rows as data that I can imput into cftool. How would I go about this?
hello @Dakota FYI, a simple code that does not need any special toolbox : load('Data.mat') Time = mat(1,:); Data = mat(2,:)...
1 month ago | 0
Change order of Area and Constantline in the same plot
hello xi was missing so I created a dummy one maybe not the smartest solution, but it does the job : %% Parameters xi = li...
2 months ago | 1
How to improve spectrogram plot?
I played a bit with some parameters and changed from imagesc to surf (pcolor would also work) to allow for optionnal frequency d...
2 months ago | 0
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Settling time functionality - definition of duration
I could suggest this simple code to answer your last question the first plot shows where the data is within 2% tolerance band ...
2 months ago | 0
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Selecting which prominence to use with findpeaks
hello again @Henry I am 100% sure to have fully understood all the maths you want to do on your data but I have some suggestion...
2 months ago | 0
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Data extraction for figure
@Viswajit Talluru with Grabit GRABIT - File Exchange - MATLAB Central it was fairly easy to scan seperatly your 3 curves -...
2 months ago | 0
| accepted
Change colour on grid
hello Andrew one solution is to overlay two mesh plots and ask for the second to have a single bright color (here red) eithe...
2 months ago | 1
| accepted
Simulink Repeating Sequence giving unexpected Results
hello this is probably due to your choice of solver - what are your options ? I opted for a fixed (discrete) sampling with sa...
2 months ago | 0
Spatial Frequency (FFT) estimation from image intensity profiles
hello and welcome back let's try it with fft (have a doubt you will get a more accurate result though) the results are in ac...
2 months ago | 0
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Improve STFT Plot Clarity
hello @Abo and welcome back ! fist idea with STFT is to maximize the overlap , but anyway the STFT has not the best performan...
2 months ago | 1
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Fringe spacing and frequency from image
hello this is maybe a bit oversimplified but I assumed that I would not make a big error by considering that the fringes are p...
2 months ago | 2
| accepted
Comment afficher une valeur en fraction?
Bonjour @KINGANGA voici une possibilité : % Given decimal number decimalNumber = 0.33333333333; % Find the closest intege...
2 months ago | 0
How do I find the corner points of an mask
hello let's try with detectHarrisFeatures : not really super efficient I admit , I will propose alternatives ... im = imrea...
2 months ago | 0
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Problems encountered when using sph2cart
hello I could not find any quiver issue (tried to reproduce it my way) , but at the end I suspected maybe you need to invert t...
2 months ago | 0
How to specify the color of each face independently? Either using plot3 or waterfall plot
let's try something %Data x = [3 4 5 6 7 8]; y = 1:10; z = [0.557668282000000 0.338441078000000 0.234647830000000 0.1715715...
2 months ago | 1
| accepted
how to print a table with hearders all aligned to the center of each column
see attached a nice formatting piece of code for this job example code : data = 1e2.*rand(5,4); fmt = {'%.3g'}; col_header...
2 months ago | 0
How to shift lines to their correction positions (I need to correct figure)
so finally and hopefully I found somehow a path to the solution first problem was to find the best position and slopes for the...
2 months ago | 0
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Bivariate colorscale for color plot
hello maybe this ? I simply assumed for the demo that f and g would be describing a circle in a 2D space the second plot is...
2 months ago | 1
Writing a loop to compute Indices
hello see basic demo below select which option you want overlap = 0*buffer_size; % overlap expressed in samples (a. For th...
2 months ago | 0
Spider Plot with Standard Deviation as shaded region
hello again I just created a quick and dirty slightly modified function (sorry for messing it ! ) , so I could suggest this - ...
2 months ago | 1
| accepted
SDOF time history analysis
if you need a code to perform some spectral analysis and integration (to get velocity and displacement) you can try this : ...
3 months ago | 0
