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Benjamin Thompson


Last seen: Today Active since 2015

Programming Languages:
C++, C, MATLAB
Spoken Languages:
English

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  • 6 Month Streak
  • Revival Level 2
  • Knowledgeable Level 4
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Answered
How do I grab all the files with a certain name pattern from several folders?
The dir function will work with wildcard characters: D = dir(fullfile(myFolder, '*grab*'))

14 hours ago | 0

Answered
Image correction based on the mesh of projection surface
The image processing toolbox has only more basic geometric transformations, and computer vision has some camera calibration tool...

14 hours ago | 0

Answered
Video background removal in MATLAB by K-means clustering processing technique
I am not sure if it uses K-means clustering but vision.ForegroundDetector can support that type of application: https://www.m...

15 hours ago | 0

Answered
Why does my code bug down during while loop?
Have you tried the Profiler tool with your code? This can quickly highlite which parts take the most time. In this case line 2...

6 days ago | 0

Answered
How to make matlab access two folders for data when separated by date
You can get file dates using the "dir" function or keyword in MATLAB. Does any of this help? >> D = dir D = 105×1 s...

6 days ago | 0

Answered
Getting ginput to read axes on an appdesigner GUI
Here is a previous discussion on this topic: https://www.mathworks.com/support/search.html/answers/392617-how-can-i-use-ginpu...

6 days ago | 0

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Answered
How do you use parameters with simulink coder?
You can change the parameter configuration using the Model Parameter Configuration dialog like below. But note that code from S...

8 days ago | 0

Answered
Does Simulink Free Trial Version R2022a include Simulink coder and Embedded coder?
No you will need to request trials for those products separately.

9 days ago | 0

Answered
Data Type Conversion in simulink
Type "doc fixedt" in MATLAB to get a detailed explanation of the fixed point data types. If I right click on the data type conv...

9 days ago | 0

Answered
How to do +,-,*,/ with one scalar and one matrix(IN GUI)?
Addition and subtraction are the same. You can add or subtract a scalar from a matrix. Adding or subtracting matrices requires...

9 days ago | 0

Answered
extracting road from lidar
Hard to tell without sample images but if the road is consistently a big black thing, use imclose to help make the edges solid a...

23 days ago | 0

Answered
Divide Image into Overlapping blocks and save it
An image is just a matrix. If you want to save a part, then imwrite(img(1:2084,1:1042), 'file1.jpg', 'jpg'); imwrite(img(1042...

23 days ago | 0

Answered
Detect ColorChecker chart in an image
You could pass a different value for Sensivity to colorChecker. By default it is 0.6. For information on supported color space...

23 days ago | 0

Answered
Parameter Estimation in Simulink
You could look over this example: https://www.mathworks.com/support/search.html/videos/online-parameter-estimation-with-simul...

23 days ago | 0

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Answered
How do I get the matrix of gray levels from the "from Video Device" in Simulink
Double click on the block and change the output color space option to "grayscale" if you can. Or, the Computer Vision Toolbox o...

24 days ago | 0

Answered
uigetfile in appdesigner freezes MATLAB
uigetfile is supposed to open a file selection dialog box and let the user select a file? Do you not see that dialog box pop up...

24 days ago | 0

Answered
I want to use mvnrnd for generating numbers,but there is error in my code
X has 31 columns. mu only has 2 columns since d == 2. Both need to have the same number of olumns. sigma needs to have the sa...

24 days ago | 1

Answered
Why am I getting syntax
Missing two closing parenthesis it would appear. Is MATLAB suggestion not correct? You might do better breaking this up into m...

24 days ago | 0

Answered
How to generate a 1D random walk of 100 sample paths, along with sample mean and variance?
Try this to take advantage of vectorization in MATLAB. I may be confused about how you define "walks" and "steps", and whether ...

28 days ago | 0

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Answered
Matlab ginput mouse click freezes and does not obtain coordinates
Do not use ginput with AppDesigner. Here is some related discussion and some alternatives: https://www.mathworks.com/matlabcen...

28 days ago | 0

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Answered
How to read .s2p file as we read .xlsx file in Matlab. I am making a gui and it is having this as its feature.
The RF toolbox seems to have a function rfwrite: https://www.mathworks.com/help/rf/ug/writing-a-touchstone-file.html There a...

28 days ago | 0

Answered
Adding a row to an existing ones in Excel
I cannot review online documentation for releases earlier than R2017A, but in that release readtable supports a 'TextType' optio...

1 month ago | 1

Answered
what is command for instead DEGREES(ATAN2(A2,B2)) formula in excel??
Since -179 and 179 degrees are very nearly equal, those results are actually within the tolerance of your other results. If you...

1 month ago | 0

Answered
If A and B are 2x2 matrices, how is the input (A*B)^2 interpreted by MATLAB as?
Since 2x2 matrix multiplication is supported by the associative property, both of those interpretations are the same. This is s...

1 month ago | 0

Answered
matlab standalone exe splash screen appears and close, not running exe, tried several things but no success. Anyone has anything, please???
Here is a list of MATLAB runtimes that need to be installed for executables created from the MATLAB Compiler for each release of...

1 month ago | 0

Answered
azimuth, elevation to x y z rotation
Your question is incomplete. Azimuth and elevation are two angles and there is no single point solution [x, y, z] that satisfie...

1 month ago | 0

Answered
matlab rank of a matrix
You are probably attempting to go below the numerical precision of your hardware and software: eps ans = 2.2204460...

2 months ago | 0

Answered
how to solve this error?
You can use the print function to save a figure to disk. See this thread: https://www.mathworks.com/matlabcentral/answers/10...

2 months ago | 0

Answered
create csv file with user input and current date as name
Use sprintf to generate a local string variable. Use a \\ sequence to include a single \ in the string. Then pass the string a...

2 months ago | 0

Answered
How can I average values from 3 consecutive rows of a matrix in one designated column repeatedly over the whole matrix?
If your matrix can have a number of rows that is a multiple of three, and you should know its size at the time you need to perfo...

2 months ago | 0

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