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How to remove black (no perfectly black) background and calculate area of cracks?
Defining the mask is easy. Assuming it's pure zero you can just do something like circleMask = grayImage > 0; It looks like t...

environ 2 ans il y a | 1

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GUIDE code from pre 2015 need to access the button press function and "programatically press the button" from a different m file
I agree with @Steven Lord that you should just rethink and reorganize the workflow. That said, please read the FAQ for ideas on...

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How to play video in matlab for computer vision?
Do you really need to re-instantiate the video player inside the while loop? Try moving these lines before the while loop % In...

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saving elements of a dataset as images
You want to save inputData(:,:,idxSelected(i)), which is a variable internal to a Mathworks written function called loadCSIDatas...

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How could I fix this file path error？
Where does the MAT file actually live? If it is not in that folder, then type in the full path and name of the file.

environ 2 ans il y a | 0

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Getting " Yet Another Color Gamut Visualizer" App Working
I don't know about that particular File Exchangeitem but if you want to look at the gamut of your actual image, you might check ...

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How to get warning source
Learn to debug your code. Just step through it one line at a time until you see the error appear. See this link Debugging in ...

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How to save an image without axis or white space?
You can use imwrite() to save any matrix as an image. It won't save any axis labels or graphics in the overlay. You can use ...

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Not recognizing any text files in folder using dir(fullfile)
You're missing the forward slash after the drive letter and colon. Put that in. Also, your code is not very robust. You could...

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Assigning many cell array entries to same value using index
Seems like it should work, but it doesn't. However this works: %% Goal is cell array 'cellArray' containing 'High' for certain...

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Problem with matlab; error opening functions
Simply reinstall the complete version. Do NOT "paste the toolbox folders, not install." Evidently that doesn't work, as you fo...

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How to connect point by curve instead of line in MTALB plot
If you want a smooth envelope going through the convex hull points, like you showed in your example, I suggest first using convh...

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Add costume buttons to imagesc plot
I'd just use AppDesigner to create a GUI with an axes on it. Then use imshow() to display the image. Then have a button that s...

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If I want to get a radial profile on an image, which program should I use?
@Kengo Igarashi I think they should be the same if they, and you, implemented the correct algorithm. Are you sure they all used...

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Boundary Extraction Issue Using Image Restoration Techniques
After you call plot, do this: axis('on', 'image'); or you can do axis ij

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Why do I get such different values for R, G and B for very similar photos?
It looks like your data for the latter plots is oscillating on an alternating element basis between two curves, hence the "solid...

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How can I find water surface temperature from landsat-9 bands?
Use multibandread to read bands 10 and 11. I'm not sure of the difference between those two bands (presumably you do), but thei...

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Curve fitting with loop
So why can't you just do what you said? Just call lsqcurvefit three times, updating variables before the second and third calls...

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Can I adjust the hyperparameters when using the Classification Learner app?
Perhaps. I know the Classification Learner app did undergo some changes around 2019. Not sure why you chose not to fill out th...

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how can i plot graph of skin friction using the bellow code.
I always use the function version of save. Try save('sliphybrid_upper.txt', 'descris', '-ascii');

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Connecting branch points using a straight line as dictated by the skeleton
Why? Why do you think you need that? Here's what I'd do: Call bwmorph to find the branchpoints. Loop over each branchpoint an...

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how to open excel in side script
If you use Windows you can use ActiveX to open Excel and control anything in Excel. from your MATLAB code directly (no need to i...

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Colormap editor window size is huge and cannot be resized bug
I just ran >> colormapeditor in r2024a and the default/initial window size is 538 pixels wide by 507 pixels high (verified by...

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How does a MATLAB compiled script represent the command window?
If you compile the program then anything that would be shown in the command window in the MATLAB development environment will be...

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Performing convolution - 3 signals are convolving with three corresponding signal ?
The result of a normal, full convolution is the sum of the extents of the two waveforms. You can automatically crop to the leng...

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Index in position 2 exceeds array bounds (must not exceed 175).
Why are you taking columns 1 to 350 exactly? What if it has more or less than 350 columns? Your code is not very robust in tha...

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How to transfer color and texture of an image to another image?
The best paper on gamut transfer I have see is this one: http://www.eyemaginary.com/Portfolio/ColorHistogramWarp.html Sorry,...

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How to enable Nearest Neighbor Classifier
I don't see how your code is doing any KNN classification. Where is the call to knnsearch? Are you sure you have training data...

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Image Denoising of SEM Image
I'm going to assume you have a binary image that you just pseudocolored to be purple and yellow. (Sorry I don't have time to un...

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I do not know how to make this work??

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