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How to expand a matrix and interpolate between values?
I believe you can simply use interp1 if you have a matrix. Otherwise if you have a table, you can make the syntax changes neces...

12ヶ月前 | 1

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closed countour around a given point
Just treat your image as an image and use image processing. So threshold it at whatever level you want to get a binary image. ...

12ヶ月前 | 0

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Why am I unable to execute my standalone application with an error referring to "mclmcrrt9_4.dll"
Look in the c:\Program Files\MATLAB folder. If the run time library installation worked, you should see it in there.

12ヶ月前 | 0

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Gradient based sharpness identifictaion in an image
Try using imgradient or stdfilt to find regions of high detail. These should be in focus. Of course low detail areas could als...

12ヶ月前 | 0

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matlab window is moving towards left not able to visible full only x is dislay can any i suggest to solve this issue
If part(s) of your figure are off screen, try to get the screen size, then reposition and resize your figure window to be on the...

12ヶ月前 | 0

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Help me get this shape on the masks
Try bwboundaries and alphaShape https://www.mathworks.com/help/releases/R2024b/matlab/ref/alphashape.html

12ヶ月前 | 0

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Separate Callback Functions in AppDesigner
The callback for a button, and the CloseRequestFunction callback for the figure are two entirely separate functions. For the Qu...

12ヶ月前 | 0

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Problem extracting values from for loop
Index the RMSE variable: for loopIndex = 1 : whatever F = getdatasamples(y_out.clean, [1:567]); A = getdatasamples(y_...

12ヶ月前 | 0

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Automatic Image Segmentation of three steel ropes using Image Processing Tools
@Darya Yakovleva, I'm really surprised I did not see your post when you posted it 4 years ago. But anyway, you've chosen wisely...

12ヶ月前 | 0

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How do I access an element in an answer array directly?
Evidently you need to do it in two steps. A bonus though is that the two step method is much more readable and understandable. ...

12ヶ月前 | 0

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I am trying to remove a noise which was generated as a random noise added with multitone cosine signals so that this noise will contain white gaussian noise with multiple
It's not really white (flat spectrum), is it, if it occurs at specific and known frequencies? Why don't you just FFT the signal...

12ヶ月前 | 0

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Extract Text and Values from String
How much does the string vary? Are all the things at fixed, specific locations? If so just use indexing str = 'AB(16.7)CD[20....

12ヶ月前 | 0

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Problem with matlab support/sales team- NO RESPONSE
Go here: https://www.mathworks.com/support/contact_us.html?s_tid=hp_ff_s_support Change the country to the one you live in, an...

12ヶ月前 | 0

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How to make MATLAB read the environment variable JAVA_HOME
Maybe try using setenv to set it up in your startup.m file.

約1年前 | 0

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Image analysis - Bounding Box converted to Circular Mask
To display circles rather than bounding boxes, you can just ask regionprops for the Centroid and EquivDiameter. Then use viscir...

約1年前 | 0

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How do I find the corner points of an mask
Depending on the shapes you're dealing with, convhull may work for you.

約1年前 | 1

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How to skip missing time durations in a time-series heatmap (image based figure)
I don't think putting in nans where you don't want it to plot is "klunky" - we do it all the time. Go ahead and do it if that w...

約1年前 | 0

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Can Matlab automatically detect a new value in Excel?
How about if you use dir to get the file date/time stamp and then if it's later than the last time you processed it then Stella ...

約1年前 | 0

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Can Matlab automatically detect a new value in Excel?
If you're using Windows and ActiveX, you can check out the properties and methods here: https://learn.microsoft.com/en-us/dotne...

約1年前 | 0

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10x10 Matrix
Alternatively (since you already have a solution to your homework problem from the other Answer) you can do m = 10 * rand(10); ...

約1年前 | 0

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How to eliminate this white haze when taking a photo?
@DGM makes some good suggestions. Glare and haze are caused by excess bright light scattering around your camera's optical syst...

約1年前 | 1

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How would I use a 2D array based on a topographical map to determine the steepest direction at each point?
Try imgradient or imgradientxy Since this is a homework problem, if you have any questions ask your instructor or read the link...

約1年前 | 1

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failing to normalize columns of matrix from 0 to 1
Try rescale for ii = 2 : 2 : size(A, 2) A(:,ii) = rescale(A(:,ii), 0, 1); end

約1年前 | 0

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yticks function gives error with subplot function
Like I and everyone else says, your code runs for us and the error message indicates you have a variable called yticks. Set a b...

約1年前 | 0

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How to create animation smiling face?
See attached demos and adapt as needed. Also see this tutorial on how to make animated GIFs. https://www.mathworks.com/matlabc...

約1年前 | 0

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Adding White Gaussian Noise to an Image.
Try imnoise

約1年前 | 0

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how to load from text file to listbox
You can use readlines to read the lines of the text file and then put them into the listbox. For App Designer, it would be some...

約1年前 | 0

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How do I start using MATLAB Copilot?
@翼 in the meantime, try doing what you said here: https://www.mathworks.com/matlabcentral/playground?s_tid=gn_mlc_playground

約1年前 | 0

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Which one is the best?
You can try them all out in the Classification Learner app on the Apps tab of the tool ribbon. You can try them with your actua...

約1年前 | 0

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Help with getting data from image at equidistant positions from the centre - to include the "off circle corners"
@Jason, ok try this - it may be a little more intuitive: grayImage = imread('cameraman.tif'); [rows, columns, numColorChannels...

約1年前 | 0