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How can I add quiver in this according to their color?
Use annotation. Set the color according to the angle. Should be easy, right? You should not have removed all the comments whe...

10日前 | 0

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How to calculate coordinate of binary iamges boundary??
It looks like the boundary is pretty solid and you probably just want the top row, not the sides and bottom. So in that case I'...

10日前 | 0

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How to plot Intensity vs wavelength of an image?
In general, no, though attempts have been made with various assumptions about the illuminant and spectral responsivities of the ...

10日前 | 0

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I need to plot circles with different radius and centers .Also I need to extract that information of centers and radius.
Try this. Adapt as needed. N = 10; % Define circle parameters. radii = 10 * rand(1, N); x = 10 * rand(1, N); y = 10 * rand...

10日前 | 0

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I want to find out how to get the angles between the centroids
Try title or text on the image axes: caption = sprintf('Angle = %.2f degrees', theta); title(caption, 'FontSize', 16); text(3...

10日前 | 1

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How can I undock the command window?
No. It's not a feature. I have many, many editor tabs open to different files. Click and drag the title bar of the command wi...

11日前 | 0

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Extracting (clearing) useful true data from a noisy temperature signal
Looks like you want to extract data only where the local range in y values is low. Here's a start: s = load('temps3-combinedlo...

11日前 | 1

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How to find percentage of Similarity between two logical matrices
Wouldn't it just be row = 168; col = 390; % Counting equal elements equal = c1==c2; % Number of equal elements equalCount ...

11日前 | 0

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connect marker with lines
You don't need all those hold on's, you just need one. Also don't use a for loop because that's plotting just one marker at a t...

11日前 | 0

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how can i imagie zoom with Convolution method
Convolution is fast and efficient. It's inserting the zeros that's going to be a pain, and slow. The final result is an interp...

12日前 | 0

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Is it possible to remove statements/lines from the command window (not everything)?
You can type clc to clear the window. Then you can type up arrow to execute only the commands you want to show in the window. ...

12日前 | 0

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I need help writing equation in matlab
This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started: How d...

12日前 | 0

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Identifying blobs and area filtering
Try the attached. % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those o...

12日前 | 0

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Randomly select one value from an Array.
No loop needed. Try this to get x cells randomly chosen from a cell array, A, of any dimensions randomIndexes = randi(numel(A)...

12日前 | 0

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Array indices must be positive integers or logical values.
See the FAQ: https://matlab.fandom.com/wiki/FAQ#%22Subscript_indices_must_either_be_real_positive_integers_or_logicals.%22

12日前 | 1

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Automated Image Segmentation using imcontour.
Try thresholding: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except those o...

12日前 | 1

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Coloring pixels with a specific color
You need to somehow get the gray scale image from the RGB image though, maybe like grayImage = rgb2gray(rgbImage); Then you ca...

12日前 | 0

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MATLAB 2021a produces a compilation error on older MATLAB code.
I don't know. Maybe you're missing a file. How many dependent files are there? Do you want to see if I can compile it? If no...

12日前 | 0

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Hello, what are the files that need to be installed to install MATLAB?
Looks like it's covered by the FAQ: https://matlab.fandom.com/wiki/FAQ#During_installation,_the_installer_crashes,_hangs,_gives...

13日前 | 0

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Determine available disk space
I didn't find any MATLAB functions but a java method works: >> free = java.io.File("D:").getFreeSpace() free = 4.6906e+10

13日前 | 1

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i would liek to find the peaks in a 3d plot, please find the 3d plot of an images, i want to calculate all the local minimas( valleys) of the given 3d plot
Try imregionalmin and imregionalmax.

13日前 | 0

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How to define the number of the column in which a variable corresponds
As soon as you assign A, B, and C, you can also create a dictionary so that later in your code you can recall what column they c...

13日前 | 0

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how do I calculate area, size and number of colored dots in an image then tabulate them?
I have no idea, not having seen your image. Maybe get rid of call to bwareafilt(). If you have any more questions, then attach...

13日前 | 0

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How would I split a vector in two based on the data values of 1 or 0?
vec = randi([0, 1], 43000, 1) mask = vec == 1; vec0 = vec(~mask); vec1 = vec(mask); whos vec0; whos vec1 % Or another way ...

13日前 | 0

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How to mark threshold value in image histogram?
Try xline. Full Demo: % Demo by Image Analyst clc; % Clear the command window. close all; % Close all figures (except th...

13日前 | 0

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Try catch error 'Unrecognized function or variable'
The warning is that tmpInvoiceForm is never used, like it said. You assigned it, but so what? You then never use it in any oth...

13日前 | 1

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Image profile intensity for many pixels
DON'T name your image "image" since that is the name of a built in function. You can do % Get profile along that line and plot...

13日前 | 0

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Numerical Analysis of changes happening in subsequent image difference
Try this: % Specify the folder where the files live. myFolder = 'C:\Users\yourUserName\Documents\My Pictures'; % Check to mak...

13日前 | 0

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Help with iteration problem
See the FAQ: https://matlab.fandom.com/wiki/FAQ#Why_is_0.3_-_0.2_-_0.1_(or_similar)_not_equal_to_zero? Use ismembertol or abs ...

13日前 | 0

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Identifying blobs and area filtering
I would try to get an image with no drops in it and then do a background correction by dividing by it. Then your global thresho...

14日前 | 0