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Remove static background from video
I don't think it's too hard. First you have to process some frames where the mouse is moving and get a "mode" image, which is t...

18 Tage vor | 0

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Relation or Pattern between curves
You forgot to attach your data! It should be possible to fit any particular curve to some sigmoid kind of curve, if you have th...

18 Tage vor | 0

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Need help increasing the speed of my code processing .xlsx files
I'd try using readmatrix or readcell instead of xlsread and see if that helps.

18 Tage vor | 0

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Split repetitive image to find pattern
Screenshots would help. Does your template (pattern you're searching the larger image for) change size or rotation when it's in...

18 Tage vor | 0

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Matlab GUI: Using a custom object tag for a button
Not sure what you mean by "read the variable". You know the callback function name so just use the known name of the button. F...

18 Tage vor | 0

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I'd like to remove variables (columns) containing specifc name
Try this: % Create sample table. rows = 5; xxxx_A = 1:rows; yyyy_B = rand(rows, 1); col3 = rand(rows, 1); t = table(xxxx_A...

18 Tage vor | 0

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Why does my histogram go out of its frame?
I am not able to reproduce in either R2022b or R2023a. It looks perfectly fine. I'd call tech support. Maybe try a different ...

19 Tage vor | 0

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I want to add the author's name and title of word document file using the matlab code. I get the error: 'Index exceeds matrix dimensions'.
See Mathworks support article: https://www.mathworks.com/matlabcentral/answers/99160-how-to-change-the-internal-properties-of-a...

19 Tage vor | 0

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add image to legend label
See attached inset demos.

19 Tage vor | 0

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Kmeans clustering to detect pothole
@Muhammad Zulkifli I agree with DGM and Walter's answers above, with the caveat that it will work only with potholes filled with...

20 Tage vor | 0

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How to solve exponential variables
OK, here it is adapted with your actual data. Note that it does not look like an exponential decay at all. % Uses fitnlm() to ...

20 Tage vor | 0

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How to solve exponential variables
See attached demo. Adapt it to use your data instead of the data created by the demo code.

20 Tage vor | 0

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Fitting 3D data into a function
Have you tried the Regression Learner app on the apps tab of the tool ribbon? You give it a set of input predictors, and a set ...

20 Tage vor | 1

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I get an error when trying to plot
Try making V a vector, and then using ./ and .^ because it's a vector: clear q=38.89 ; %W/m^3 r_o=0.04 ; T_oo=5 ; k=0.5 ;...

20 Tage vor | 0

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We keep getting this error, how can we fix it?
I am not aware of a strcmps() function. Try strcmpi or contains and try [rows, columns, numberOfColorChannels] = size(im1) i...

23 Tage vor | 0

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remove negative values from one column and the corresponding data in another coloumn
Try this: rowsToDelete = data(:, 1) < 0; % Where values in column 1 are less than 0 data(rowsToDelete, :) = []; % Delete all c...

23 Tage vor | 0

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Annoying Matlab feature enhancements or changes in 2021 update5
You say you're using "Matlab R2011update5". There have been lots of improvements in the last 12 years. Perhaps it's time for y...

23 Tage vor | 0

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Not detecting one of the classes
Do you have enough of that class? If you didn't use many of that class in training, then perhaps it won't learn how to find it....

23 Tage vor | 0

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error message - Unrecognized function or variable ‘rec’.
You try to use the variable rec in your code, or try to call a function called rec. But that function or variable does not exis...

23 Tage vor | 0

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Dot indexing is not supported for variables of this type.
You have PHI_o=O. conj(O); So, because there is a dot after O you're telling MATLAB that the (poorly named) "O" is a structure...

24 Tage vor | 0

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How can I detect the object in this noisy image?
Why can't you just threshold? mask = grayImage > 35; Beyond that I'm not sure what you want to do. There are functions to thr...

25 Tage vor | 0

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How to draw a CIELAB color chart?
The best I can offer is https://www.mathworks.com/matlabcentral/fileexchange/51560-get_xyz?s_tid=srchtitle and the attached de...

26 Tage vor | 0

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Extract RGB values, shape and size of many objects in all images inside a folder.
See the FAQ: Process a sequence of files See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchan...

26 Tage vor | 0

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Convert bwboundaries to graph
I don't think that is the right approach. Usually what is done is you find the centroid and find the distance of the boundary p...

26 Tage vor | 0

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How to make normal distribution curve from the bar chart?
That's not a single Gaussian you have there. There are at least two of them. See attached code that can fit the data (your his...

26 Tage vor | 0

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Color's histogram and histogram's comparasion.
You're going to have to round r, g, and b because they're not integers and can't be used as indexes. Don't use image as the nam...

26 Tage vor | 0

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How to apply Gaussian blur to a specific area (oval) in an image?
Use imgaussfilt on the whole image. Then get an annular mask that is just the edges of the oval. Replace the pixels in that an...

27 Tage vor | 1

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Calculate intensity of bright and dark blobs in the image
Try this: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those of imtool...

27 Tage vor | 0

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Calculate intensity of bright and dark blobs in the image
See my Image Segmentation Tutorial in my File Exchange: Image Analyst's File Exchange It's a generic, general purpose demo of ...

27 Tage vor | 0

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Is it possible to save a corrupted .mlapp file?
The problem is you gave the name of your .mlapp file as the name for your MAT file when you saved it. This is a disaster. Basi...

27 Tage vor | 0

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