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Dividing part of a histogram
I think you may have overlooked my suggestion to use linspace to compute the edges, or you just coudn't figure it out. So here ...

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update the column headng by readin the excel file
You forgot to attach your workbook, and forgot to say what kind of variable you want to work with in MATLAB (table, cell array, ...

environ 3 ans il y a | 0

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Dividing part of a histogram
Specify the "edges" you want for the bins as an input to histogram or histcounts

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what does count pixel =0 indicates?
It looks like your input image is practically binary already, because there is no histogram shown in the plot. Is it already bi...

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How can measure distance after threshold
Use bwdist on the inverse of the binary image. help bwdist

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Identify XY coordinates of boundaries of top 1/4 'pie slice' of circle
There is, sind and cosd, and it sounds like you've used them. They're for the arc. And linspace is for the straight line parts...

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While performing Time Series plot in MATLAB, I am getting error "Index exceeds the number of array elements. Error in ts_plot (line 42)
If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this: TUTOR...

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Comments before the H1 line in help text
You could try using readlines and writing your own help function PrintHelp. Something like this: % Test code for PrintHelp fi...

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Comments before the H1 line in help text
I don't believe so. It does not look like it. The help function just takes all the comments at the beginning of the file. If ...

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Optimization using Cell Arrays
Just use a normal double array. Cell arrays are slow and very inefficient and are a special type of variable for situations whe...

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extracting boundaries properties from regionprops()
If they are known to be spheres, and you want to ignore having a "bay" if there happens to be a black spot on the boundary, you ...

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How to calculate the area of single leaf along with its height
First of all you need to segment the plant, which is easy enough. Then get the skeleton of the leaf with bwskel. Then you need ...

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How can i get the smallest shape using a list of centroid coordinates?
Why don't you just simply OR all the binary images together?

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Visualizing line plot with histogram density
Try this: % Initialization steps. clc; % Clear the command window. close all; % Close all figures (except those of imtool...

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how to connect the detection object
Zoom in. You'll see your crack in the original image is NOT continuous. Why do you think it is?

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Finding the amount of times '101' appears and does not appear in a series of strings
Use strfind. For example: dp = [0 1 0 1 0 1 1 1 0 1 0 1 0 0 0 1 0 1 1] indexes = strfind(dp, [1 0 1]) numOccurrences = numel(...

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Why do i get this error trying to install MATLAB using installation key? (no matter the version or install location or antivirus being disabled)
I assume you clicked the link it told you to, right? If so and you've exhausted all it suggested then your quickest route to su...

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Error Messages keep popping up: "Undefined function or variable"
There is just so much wrong with this that every time I fixed one thing, something else would pop up. For starters, use c2 inst...

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MATLAB R2023a Not Loading on Linux
If you don't get an answer here this weekend, then your fastest route to success might be the FAQ: https://matlab.fandom.com/wi...

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How to test and train in MATLAB
Try this link: Debugging in MATLAB | Doug's MATLAB Video Tutorials

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Why are there not enough arguments?
From data_embedding.m, you call lsb_enc(wavin, wavout, text, password); and that runs fine because you've defined the 4 inputs...

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I want to make a movie from plots in MATLAB. How do I do this?
See attached demos, especially movie_made_from_plot.m.

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making a movie from plots
See attached demos, especially movie_made_from_plot.m.

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OTSU for fibrosis quantification
I don't know what you want. If you want Otsu threshold, use graythresh help graythresh See my Image Segmentation Tutorial in ...

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Finding files in directory with two different strings in filename
See contains or ismember

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why this code is not working for a slightly diff lungs image?
Well there could be lots of reasons. Either your segmentation for the "bad" image didn't work so well. the trained SVM model...

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How to identify particles in an image that have a comet-like trail from those with perfectly circular halos?
What you need to do is to first segment out the faint halos from the background. Perhaps take the mode of the histogram and ass...

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I need MATLAB code that plots the aerodynamic power generated by a wind turbine vs the generator rotation speed for different wind speeds
Looks like you're not plotting out far enough on the x axis to see the parabolic shape. You're only going out on the relatively...

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How to plot an in-ellipse(ellipse inside an object) which also matches the object orientation.
The leader of the Image Processing group at the Mathworks, Steve Eddins, has a blog entry showing how to do it: Visualizing reg...

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How can I determine if the absolute value of a coefficient of x in each element of a matrix was less than 0.01 consider it zero?
Then just write it as a=[ 12X+14, -10(X^2); X 4] with whatever value you have for X. Why can't you? Do you not know what the ...

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