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# Steve Eddins

Last seen: Today Active since 2006

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What is the easiest way to plot a circle annotation that maintains its shape regardless of figure dimensions?
You can position a circle with the center specified in axes data space by plotting a single point using a circle marker. You can...

3 months ago | 0

Saving figure in jpg with 600 dpi
The function exportgraphics generates and saves the image at the specified resolution, but it does not write resolution info int...

3 months ago | 3

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How to remove thin lines from the following image?
Try using the 3rd output of imfindcircles (metric) to distinguish the bigger droplets that aren't really circles.

4 months ago | 0

Convert RAW file (NEF) to CIELab
You could use the Image Processing Toolbox function raw2rgb to convert your raw NEF to sRGB values, and then you could use the r...

5 months ago | 0

How can I change a square wave into a sign wave with the graph provided?
Try removing the call to the sign function.

5 months ago | 0

label two objects that share part of the same boundary separately
m = [0,1,1,1,0;1,0,0,0,1;0,1,1,1,0;0,1,0,1,0;0,0,1,0,0] Fill the holes. From your example, it looks like the background connect...

6 months ago | 1

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Extracting bright spots on image
Try something like the following: Convert to grayscale (using rgb2gray). Use imextendedmax to pick out the bright peaks. You'l...

7 months ago | 1

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Saving to .mat without additional struct.
Try this: s = load("test2.mat"); aircraftdata = s.test;

7 months ago | 1

Find consecutive numbers below threshold using bwlabel
You could a hysteresis thresholding technique. First, threshold with a strict threshold, like your 0.5. Then, threshold with a s...

8 months ago | 0

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3D Plot shrinks one dimension when plotting Alphashape
The plot method for alphaShapes sets the data aspect ratio to [1 1 1]. When your code arrives at line 76, the data aspect ratio...

8 months ago | 0

Use Geographic Plots in tiledlayout without multiple axis
From the doc for nexttile: "nexttile creates an axes object and places it into the next empty tile of the tiled chart layout tha...

9 months ago | 0

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Is this another bug in imread(), or is this just a forum problem?
I can reproduce the problem in MATLAB Answers. The problem does not occur in MATLAB Online or in the desktop version. I'll let ...

10 months ago | 0

How to use "imregister" with "InitialTransformation"?
The value of InitialTransformation is supposed to be an affine3d object, not an imref3d object. See the doc description for the ...

11 months ago | 1

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WebREAD returns zeors when reading a GIF image
I got an array of zeros once using your code, but later I ran it again and got the expected image data. I quit MATLAB and launch...

11 months ago | 0

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imwarp function - bands during interpolation
First, let me run Arnaud's reproduction code and display the result so that everyone can see what we are talking about. Im1 = r...

11 months ago | 1

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Check for missing argument or incorrect argument data type in call to function 'head' - using Matlab R2020a
The function head is only defined for an input that is a table, a timetable, or a tall array. When trying to execute your code,...

11 months ago | 1

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Getting imaginary numbers for induction factors; I am getting imaginary number for my induction fact Aa and At but I am not using any sqrt to calculte. Thank you.
The acos function returns complex values if the inputs are outside the interval [-1,1]. Set a breakpoint on the line where you a...

11 months ago | 0

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...

1 year ago | 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...

1 year ago | 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...

1 year ago | 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...

1 year ago | 0

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...

1 year ago | 0

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

1 year ago | 2

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 ...

1 year ago | 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...

1 year ago | 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...

1 year ago | 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.

1 year ago | 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.

1 year ago | 2

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

1 year ago | 2

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