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the username and password?
Ask your professor how to do it, or another student who has done it successfully. If that doesn't work, see the FAQ: https://m...

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I need to innovatively produce a 140x8 matrix filled with random grades from 140 students
Not sure what qualifies as "innovative" but how about making a matrix of all prime numbers, rescaled? % Get a list of 8*140 pri...

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Projection of satellite image
Try the Registration Estimator app on the Apps tab of the tool ribbon. I haven't used it but with most or all apps, you can exp...

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MATLAB Plots *.tif According to Light
This is what I got so far: % Initialization steps. clc; % Clear the command window. close all; % Close all figures (excep...

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choose random places on matrix
Simply use randperm and linear indexing. No need to figure out or convert locations to (row, column) indexes (that's a waste of...

presque 2 ans il y a | 0

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Working in Excel with live on MATLAB
You can interact with Excel "live" if you are using Windows and use ActiveX. I attach a demo for that, ExcelDemo. You can stop...

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Force saved figure to use a specific number of pixels
"I am saving different maps" <== What, like a road map, or an image with different colormaps? "I save my image" ...with "... ex...

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MATLAB Plots *.tif According to Light
In your 3D-ish rendering, where exactly are the shadows? And the yellow spots? Can you point to them with arrows or something?...

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Need help to removing motion (breathing?) artifact from ECG signal
I'm sure it's been done before. Rather than me just guessing, I suggest you search the medical literature in PubMed to find art...

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How to give Gray color histogram gray shade instead of blue
Try using the 'FaceColor' input of histogram. % Create sample data. data = rand(1, 1000); % Define custom color. grayColor ...

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How to change Fontcolor xticks and yticks
Here is a demo that shows you how to change just about everything on a plot: % Demo to make a black graph with red Y axis, gree...

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How to hide console messages for a matlab executable in batch mode
Not sure what things are showing up but if you don't want any then make sure you have semicolons after every line, and don't use...

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Pattern recognition in Robot Vacuum Map
See if this might help: https://www.mathworks.com/help/vision/ug/abandoned-object-detection.html?s_tid=srchtitle_site_search_1_...

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LCD defect detection using matlab
Yes, MATLAB is a great tool for developing image processing apps. It's easy to program in and has a great library of functions ...

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unknown parameters in Radon transform example
"The page you were looking for does not exist. Use the search box or browse topics below to find the page you were looking for."...

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How to do film dosimetry?
You can use imsplit to separate an RGB image into individual component images in one line of code: % Separate RGB image into in...

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Draw first principal component line and regression line on the same scatterplot
It looks like you're doing a simple linear fit. I'm not seeing how you're using pca. It sounds like homework and they want you...

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Trying to understand how imagesc works compared to scatter.
Scatter is an x-y plot where the origin is at the lower left, by convention. And imagesc plots an image (or matrix) where the o...

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Trying to understand why my graphs are all flipped
Maybe try axis ij or axis xy until the graph is in the orientation you want.

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How does the regionprops calculate the area or the eccentricity of an object?
Not sure how I missed your question 5 years ago, but anyway I don't think you'd use hough() anymore. You'd use imfindcircles, t...

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Adjusting color limits on displayed color images
What data type do you have for your indexed image? If it's double, it should be in the range 0-1, and if it's uint8 it should b...

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Measuring average intensity of pixels for multiple images.
There is absolutely no need to store all your images in a cell array or as a 3-D image. See the FAQ for code on how to proces...

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I want to install an MATLAB 2024 Update 6 but it is only showing Update 2 do I have to reinstall?
Try to install the update from the bell icon in the title bar in the upper right. Does your bell have a red dot on it, or not? ...

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Network doesn't work on test image
Make sure your new images are resized to the required size for your model (the same size as your training, validation, and test ...

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Representing an area on a different axis.
To have different data (like area) on a different/additional axis, see yyaxis help yyaxis

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Finding mean value over certain amount of values in a matrix
A = [1,2,3;4,6,8;7,12,7;14,4,23] result = [2.5,4,5.5;10.5,8,15] % Your desired answer r = conv2(A, [1;1]/2, 'valid'); r = r(1...

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How "medfilt1(X,N) filter logic works. How to convert this into embedded c language. please suggest how to do this.
See https://en.wikipedia.org/wiki/Median_filter for a thorough explanation of the median filter. For many MATLAB functions, y...

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How do you track a tip of a pendulium and plot its displacement against time?
It all comes down to extracting one frame at a time and then segmenting that frame and using regionprops to find the centroid. ...

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AI to help with Matlab scripting and Simulink Drawing
See this link: https://www.mathworks.com/matlabcentral/discussions/highlights/851851-introducing-the-revolutionary-preanswer-ai-...

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Attempting to fit data with a sigmoid curve, but not an option in curvefitter toolbox
Attach your actual data so we can work with it. In the meantime, I'm attaching my demo of fitting a sigmoid, though it uses a d...

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