Answered
identifying shapes in image
See this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/181422-fit-polyshape-to-objects-in-image?s_tid=prof...

1 month ago | 0

Answered
SNR goes down as noise filtering is increased.
Depending on the data you provide, the theoretical assumptions of a Wiener filter (signal stationarity, white noise, etc...) ar...

1 month ago | 0

Answered
Odd behavior of unstack in Matlab2025b
The change occurred in R2020a and was documented, https://www.mathworks.com/help/releases/R2024b/matlab/ref/table.unstack.html?...

1 month ago | 0

Answered
Can I hade the Figure toolbar without hiding the Axes toolbar?
figure(Toolbar='none')

1 month ago | 0

Answered
Nested tiledlayout: can parent tiles have different widths depending on number of child tiles?
It might be better to us e a grouped bar plot, e.g., Y = [5 3 7 0 0; 6 4 2 1 0; 4 8 5 1 6]; gradientGroupedBar...

1 month ago | 0

Answered
How to change the arrangement of plots in a tiled layout even if the plots are not empty?
One way: tl=tiledlayout('vertical'); for i=1:3, nexttile; plot((1:5)+10*i); title(string(i)); axis square; end tl=transpos...

1 month ago | 0

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Answered
How do I perform Image segmentation in an RGB image using pattern?
load Image [r,g,b]=imsplit(I); lev=multithresh(r,2); L=imquantize(r,lev); H=bwareafilt( imfill(L==2,'holes') ,1) ; BG= ...

1 month ago | 1

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Answered
Curve fitting confidence intervals - discrepancy in manual CI plot and predint plot
Also, what is predint and how is this different from manually plotting the CIs as I did? predint predicts an uncertainty inter...

1 month ago | 0

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Answered
How to preserve the 3d plot box, when changing patch visibility.
Here's something a little fancier, and maybe more robust. It captures (and reasserts) all relevant properties of the plot perspe...

1 month ago | 1

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Answered
How can I quickly find the eigenvalues and eigenvectors of a matrix with a special structure using high-precision calculations?
@Torsten has hinted, based on your earlier posts, that the eigenvalues of M may occur in distinct and purely imaginary conjugate...

2 months ago | 0

Question

Indexing behavior of table properties
Suppose we have a table such as, T=table(rand(3,1,'single'), randi(5,3,1)) What is it that allows the VariableTypes to be in...

2 months ago | 1 answer | 1

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answer

Answered
How to preserve the 3d plot box, when changing patch visibility.
Using axis() twice, we can both capture and reassert the axis limits, axis(axis) This also then converts all X,Y,ZLimModes to ...

2 months ago | 0

Answered
How can I force a .txt export
Instead of, if length(file) < 4 || ~strcmpi(file(max(1,end-3):end), '.txt') file = [file '.txt']; end use ...

2 months ago | 0

Answered
Extracting from cell arrays using a nested loop
Do not use a nested loop: clear Data for k=250:-1:1 Data(:,k,:) = Matrix(zapTime(k)-12000:zapTime(k)+75000, 2:end) ); end...

2 months ago | 0

Answered
How to draw the axis in the origin of the coordinate system?
Use export_fig instead, https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig

2 months ago | 1

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Restore data format from SCB to SSCB after patch embedding
One way is to use a functionLayer.

2 months ago | 0

Answered
Error forming mini-batch for network input
This is not enough to reproduce the error. You haven't provided input images. My guess, however, is that there are some files in...

2 months ago | 2

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Having 'imdilate' function only proceed when there are not a bunch of zero values
Don't use a loop. Use imreconstruct instead

2 months ago | 0

Answered
How do I find if a point is within the volume of a rotated ellipsoid
Download AxelRot from here, https://www.mathworks.com/matlabcentral/fileexchange/30864-3d-rotation-about-shifted-axis?s_tid=src...

2 months ago | 0

Question

Resetting a memoized function
I know that clearCache will clear the cache of a MemoizedFunction, but how would you reset its other properties to their default...

2 months ago | 2 answers | 0

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Answered
Deconvolution using FFT - a classical problem
Since you are trying to deconvolve in the presence of noise, it would make sense to use a regularized deconvolver like deconvreg...

2 months ago | 0

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Answered
Morphological Image Processing: Object Identification and Separation
This might be along the lines of what you're looking for. It's semi-empirical though in the way it discards particles. Maximum d...

2 months ago | 1

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Answered
Deconvolution using FFT - a classical problem
dt=0.001; N=20/dt; t= ( (0:N-1)-ceil((N-1)/2) )*dt; %t-axis u=(t>=0); g=3*exp(-t).*u; y=conv(g,u,'same')*dt; Y = fft...

2 months ago | 0

Answered
How do I start using MATLAB Copilot?
The Matlab AI Co-pilot is an add-on product. It will not be part of your Matlab installation unless you've bought a license for ...

2 months ago | 0

Question

Parsing mfunctions with mtree
Given an Nx1 colum vector of strings containing lines of mfunction code, it is possible to use the undocumented function mtree()...

2 months ago | 1 answer | 1

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Answered
Where is the Save icon (not Save As) in a figure (.fig) R2025b Matlab
There is no separate Save icon applicable to figures. I think only the Editor has ever had that.

2 months ago | 0

Answered
Determine which delaunayTriangulation Constraints correspond to input constraints?
If you convert the final triangulation to a graph, then it seems to me that shortestpath should give you the intermediate nodes ...

2 months ago | 0

Answered
Adding a dropdown box for the variable unit BESIDE the variable
Sure. For example,

2 months ago | 0

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Question

Appdesigner labels linked to components
It appears to me that text labels in AppDesigner canvases have two types: labels that are standalone, independent of any compo...

3 months ago | 1 answer | 0

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Answered
Pass commands to executable run through system command
Perhaps as follows? In1 = '1'; In2 = 'C:/Dir1/File1.dat'; In3 = '02/09/2026 16:00'; In4 = '0.5'; cmd = sprintf('C:/Dir2/m...

3 months ago | 0