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Activation a new computer
You can deactivate a computer you no longer have access to by logging in to your Mathworks account (avatar on the upper right). ...

ungefär en månad ago | 1

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How do I solve this issue, Error using vertcat Dimensions of arrays being concatenated are not consistent. Error in (line 22) A = [G1 +G2 +G3 -G1 -G2;
Your top row of A has 5 elements (columns) and you're trying to put a row under it that has only 3 elements (columns). You can'...

ungefär en månad ago | 0

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How do I project a map from the plane to a sphere?
Here is a demo for how to map an image onto a 2.5-D surface. The surface doesn't go all the way around in 3-D though. % Demo...

ungefär en månad ago | 0

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what is the ebst way to learn analytical Plotting
Here is the link we usually give: Best way(s) to master MATLAB? - MATLAB Answers - MATLAB Central Lots of ideas in tthe above ...

ungefär en månad ago | 0

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Compressing pixelated image blocks into array
Get rid of ones(). Hopefully this well commented demo will explain since it covers three scenarios. @Sushruta Chandramouli I t...

ungefär en månad ago | 0

Answered
Compressing pixelated image blocks into array
Just get rid of the ones() in your fun definition: fun = @(block_struct) mean2(block_struct.data)*ones(size(block_struct.data))...

ungefär en månad ago | 0

Answered
why is my cell array being read as char
Are you sure you're getting the class of the whole cell array instead of the class of one of the contents of one cell in the arr...

ungefär en månad ago | 0

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How do I add generated audio to a silent video?
Did you see https://www.mathworks.com/matlabcentral/answers/434844-how-to-combine-audio-and-video?s_tid=answers_rc1-3_p3_MLT

ungefär en månad ago | 0

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Grain boundary analysis of images
You might try taking the darkest pixel in each image to combine them. Try this code: % Demo by Image Analyst % Initialization...

ungefär en månad ago | 0

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Answered
Create boundaries in an image based on porosity
Try this: % Demo by Image Analyst % Initialization steps: clc; % Clear the command window. close all; % Close all figure...

ungefär en månad ago | 0

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i have a matlab code with 3 for loops, in last for loop , there is threshold based penalization. i want trace some variables in that code and compare with plot
Make sure the variables you want to write out to the CSV file are all matrices (so you need to to create pout1 and put2 and inde...

ungefär 2 månader ago | 0

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Answered
How to connect broken lines, but no enlarge line width?
Try this to completely fill the rectangle as you asked (untested - post before image separately if you want me to test it): aft...

ungefär 2 månader ago | 0

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I need an algorithm to fill in the blank vertical path pixels.
You need an edge linking program. You basically need to label the lines with 8-connected pixels to give a label/number for each...

ungefär 2 månader ago | 0

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how to find curve fiitng equation through custom equation
I understand that you've measured x and y points and you want to fit these to an equation for the discharging state of charge (S...

ungefär 2 månader ago | 0

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Are there any methods to remove/reduce shadows in this image?
Try the Color Thresholder on the Apps tab of the tool ribbon. Use HSV colorspace and find regions with saturation less than abo...

ungefär 2 månader ago | 0

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How to highlight a area in figure
You can try imoverlay to make the mask overlaid on the image, or you can use plot to plot a red outline at the mask perimeter lo...

ungefär 2 månader ago | 1

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steady plot end with different rate of rise question
Your plot shows an exponential decrease but the code you gave does an exponential increase. Which do you want? And is it you...

2 månader ago | 0

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Extract individual curve from a multiple curve plot
I think the best solution is not to try to fix a mess of data but to try to prevent the mess in the first place. Was the .mat f...

2 månader ago | 0

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MatLab crashing on Windows 11 Pro during data analysis. Memory leak and insufficient RAM likely not cause of crash. What is the cause of this problem? Log file below:
MATLAB crashes create a crash dump file (like the one you listed). I believe those files are automatically sent to the Mathwork...

2 månader ago | 0

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How to stop command window from pasting in previous commands?
It's always been like that. There are lots of options as far as the command window goes. Go to Home->Preferences and look at t...

2 månader ago | 0

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how can i convert pixels into cms,the code that is available online is giving error
You need to define a certain distance in your image to be a specified number of cm. Do you know the field of view? Or the widt...

2 månader ago | 0

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poltting a linear relatioship
You can use polyfit to fit your data to a line, then use plot to plot the fitted line and the original data. Attached are examp...

2 månader ago | 0

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Superscripts and subscripts in fprintf
See https://www.mathworks.com/matlabcentral/answers/707023-how-to-put-subscript-superscript-in-fprintf?s_tid=srchtitle

2 månader ago | 0

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How to calculate variance, kurtosis, and skewness of a ROI (Region of Interest) in grayscale image?
See my attached demo for computing image moments. Adapt as needed.

2 månader ago | 1

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I can't understand what my mistakes are
Looks like line 6 is really not empty. Maybe scroll to the right to see if there is a - on that line. Also t(2,1) I think is a...

3 månader ago | 1

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Sir, how to find area & coordinates of white pixels in binary image?
To get all the rows and columns of the white pixels, you can do [rows, columns] = find(binaryImage); You'll get two vectors an...

3 månader ago | 0

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how to crop a binary mask to remove all black pixels while maintaining the largest area of white pixels?
With a shape that is not rectangular you cannot "remove" ALL black pixels. However you can crop the image if you want (like to ...

3 månader ago | 0

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Insufficient number of outputs from right hand side of equal sign to satisfy assignment. Error in extraction (line 32) [f0,idx] = pitch(x,fs,Method="SRH",WindowLength=win
The function called pitch() returns more than the 2 outputs that you are requesting. It takes 3 or more. What does the functio...

3 månader ago | 0

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PCA on an image
See my attached demo where I compute the principal components of an image.

3 månader ago | 0

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Trouble with installing package on offline computer
Contact Mathworks by phone for all installation related questions. It's free and immediate.

3 månader ago | 0