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Filling one type of holes in a binary image
Based on your description of what you're trying to do, I ask the question: how are the semi-rectangular grains, which you want t...

約3年前 | 1

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How to remove extrapolated regions of a grid created with scatteredInterpolant?
You could try using an alpha shape to postprocess (mask) Z. Original code dx = 5; %grid step load('datapoints.mat'); F = s...

約3年前 | 1

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How to create a filling/shading between prediction bounds?
I can't completely run your code (s and Asiiimodel are missing), but I think that the black color in your patch result is from t...

約3年前 | 1

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FFT function is not functioning.
It seems that you may have tried to install MATLAB on a cloud drive (OneDrive). Or maybe you copied the application files into O...

約3年前 | 0

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How do I transform this format 202007011030 (2020 07 01 10:30) into a readabel format?
I can imagine several ways to do this. Here is one. lines = readlines("Fehmarn_Wind_date.txt"); readlines was introduced in R2...

約3年前 | 0

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ROI Trace boundaries result
I think some careful coordinate system tweaks will get you there. In many Image Processing Toolbox functions, pixels are treated...

約3年前 | 2

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How is the 2D filter function used in this code?
For each element in A, filter2 essentially "slides" the filter F so that its center lines up with the element in A, and then it ...

約3年前 | 1

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Changing color of pixels around certain pixels
Suppose mask is a logical matrix that indicates which pixels satisfy your condition. (That seems to be the purpose of idx in you...

約3年前 | 2

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Colorbar range inconsistent in high aspect ratio images
Call axis image before you create the colorbar and set its tick labels. When you set tick labels manually, a mode is set so that...

約3年前 | 0

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Can a MATLAB function edit the input?
You'll need your class to subclass handle. See the documentation page "Implementing Linked Lists with Classes" for details.

3年以上前 | 0

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Matlab working very slow on my m1 MacBook Pro
See this answer and follow it for updates related to this problem.

3年以上前 | 2

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Shouldn't bwconvhull() be idempotent?
Hi Matt, At a general level - and speaking from too much personal experience - expectations about geometrical operations such a...

3年以上前 | 2

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Issue in plotting binary image boundaries with real axis values
The function bwboundaries returns boundary values in pixel coordinates. You'll need to scale those to world coordinates yourself...

3年以上前 | 0

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How to change boundary width in Active Contour Method?
Call visboundaries with an output argument. That output argument will be an hggroup object containing two lines. You can then ma...

3年以上前 | 0

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Having graycomatrix rescaling problem
Here is the doc for the NumLevels parameter: Number of gray levels, specified as an integer. For example, if NumLevels is 8, gr...

4年弱前 | 0

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How to find the center position under the saturation spot signal
Try converting the image to binary using imbinarize and then using regionprops to compute the centroid. rgb = imread('image.bmp...

4年弱前 | 0

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How to bold x axis labels
Try setting the TickLabelsInterpreter property to 'tex', like this: plot(1:10) ax = gca; ax.XAxis.TickLabelInterpreter = 'tex...

4年弱前 | 0

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three difference vectors and plots
I have copy-pasted your code below, exactly as entered in your question. It runs and produces the plot with no error. I suggest ...

4年弱前 | 2

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Problem with datetime and daily values
Use a timetable and the retime function. >> T = readtable("data.xlsx"); >> head(T) ans = 8×5 table Date ...

4年弱前 | 0

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What is the best way to count the occurrences of two table columns together?
In my previous answer, I forgot that grpstats is in the Statistics and Machine Learning Toolbox. Here is an answer using groupsu...

4年弱前 | 1

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What is the best way to count the occurrences of two table columns together?
I think grpstats will do what you want: >> grpstats(T,["A" "B"]) ans = 4×3 table A B Grou...

4年弱前 | 0

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Find peaks not working on my data set
I suspect the issue is with the x-coordinates that you are using to plot the peaks. You are plotting the peaks against the indic...

4年弱前 | 1

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Assign values in a matrix
One idea is to use a timetable and the retime function. Suppose I have the following matrix for a 4-minute charge and a 3-minute...

4年弱前 | 0

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Code is showing Undefined function 'pixelHull' for input arguments of type 'double'.
I wrote a function called pixelHull as part of my 16-Mar-2018 blog post. You can find the function listing near the bottom of th...

4年弱前 | 1

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Binarize image for specific colour
Use the Color Thresholder app to generate the code needed to do this segmentation. See my 14-Oct-2019 and 25-Apr-2014 blog posts...

4年弱前 | 0

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Plotting signal of a region of interest
A possible explanation is that you have a variable called "size" or "mean" in your workspace. For example, if you have a variabl...

約4年前 | 0

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How to apply a threshold value to the cell array
I think writing a for-loop would be most straightforward way to go. Something like this: for k = 1:numel(C) C_k = C{k}; ...

約4年前 | 1

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How to change the font of a pie chart?
The text labels created by the pie function are not controlled by the font properties of the containing axes object. They are in...

約4年前 | 2

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superimpose matrices (n,n,m) to (n,n,1)
Here are some options. Compute and plot the maximum value at each pixel: imagesc(max(a100,[],3)) Compute and plot the minimum...

約4年前 | 0

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Image conversion from uint16 to uint8 mismatch
im2uint8 is using a scale factor of (255/65535), not 1/256. Note that scaling the maximum of the uint16 range, 65535, by 1/256 ...

約4年前 | 1

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