DGM

Last seen: Today | Con actividad desde 2015

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Hi, I'm nobody. I don't belong here, but I have nothing better to do. Matlab used to be part of my work. Now it's part of my hobbies. That's pretty sad, really.

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how to find area and volume from a .stl file?
Your STL, like many scans, is not a closed surface, and it has defects. According to admesh, it has 180 disconnected edges and ...

1 día hace | 0

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how to compare answers ,which student chose it in answer sheet with answer key
Since there are no requirements at all, I choose to interpret the task in whatever way is dictated by the sum of whimsy and laz...

1 día hace | 0

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How to mask pixels of certain ndvi values?
Here's my guess. % idx is apparently some sort of label array where the labels are unknown % so this simply figures out which ...

4 días hace | 0

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how to Identify the centre of atom
Here's a start. % the original image inpict = imread('image.png'); inpict = im2gray(inpict); % crop out the subimages A0 ...

7 días hace | 0

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AI Chat Playground generated an interactive plot with a slider and a bug
Try just updating the existing line object instead of creating new line objects. % Create the UI figure fig = uifigure('Name',...

7 días hace | 1

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I want to change the backgroung color of image into transparent and then work with the pixels of it
I'm still confused as to what information is important, so I'm just going to throw out what I have in notes. This is in part ba...

7 días hace | 0

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How can find connected region in RGB images?
This answer demonstrates how to generate a mask by box (range) or ellipsoid (distance) matching in RGB given a target color tupl...

7 días hace | 0

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Undefined command/function 'reshape'.
Again, I have no idea what variations might exist between files. I also don't really know how far you want to go with changing ...

8 días hace | 0

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How Can I Clearly Identify Differences? and How to Save and Display Data in Full Decimal Format?
I'm going to assume that you're entering them into excel by trusting that format long will reveal the entire number. It won'...

11 días hace | 0

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Tracking Min & Max Values in 2D Contour Plot
I don't know how your data is arranged or how you're plotting it, but you should be able to just use plot(). I assume you have ...

11 días hace | 0

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Generate 3D model from a 2D image
While I'm waiting for MATLAB to load, I'm going to throw this out there. https://www.mathworks.com/matlabcentral/answers/1926...

11 días hace | 0

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how to let a "plot" immune on any later " hold off" once this "plot" is created.
Here's one idea. r=10; plot([-35,35], [0,0], 'r-.' ) axis equal hold on % just create a dummy plot object to be used in...

12 días hace | 0

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use rgb to caculate three brown ratio
The question is unclear. This seems to be what was attempted, but it doesn't make sense given the question statement. inpict =...

12 días hace | 0

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RGB or HSV
I keep seeing this thread and every time I wish I could ask what the question meant. It's conflating a bunch of terms which the...

13 días hace | 0

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I made a folder with 12 .fig files, I am attempting to convert these to jpeg using a loop.
Maybe something more like this. D = dir('Figures/*.fig'); % use dir() to get directory contents for K = 1:numel(D) hf = o...

14 días hace | 0

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Develop a matlab program that generates a 10x10 array of random integers and uses appropriate flow-control structures to search the grid and determine the maximum and minimum
Want to see if your TA can tell you didn't do your own homework? Here's a fair test. [~,A] = system('od -vAn -N200 -tu2 < /dev...

14 días hace | 1

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How to draw an histogram?
See histogram() and histcounts() A = randn(150,150); % normally distributed random numbers histogram(A) % looks like a gaussia...

15 días hace | 1

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Plot sequence of images on top of a trajectory
Here's a start. Note that the alignment is just guesswork on my part. Also, I don't know why there's a frame offset between th...

15 días hace | 0

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How to Extract Data from Contour Image?
As far as I'm concerned, you'd do it the same way you'd extract the lines. Manually. https://www.mathworks.com/matlabcentral...

16 días hace | 1

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Calculate the derivative of a function using forward, backward, and central difference.
Here are two similar questions, both with good answers. https://www.mathworks.com/matlabcentral/answers/213823-forward-backward...

17 días hace | 0

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how can i change image brightness ?
https://www.mathworks.com/matlabcentral/answers/347448-how-to-increase-the-brightness-of-an-image

18 días hace | 0

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how can I make the dilation and erosion process on the image in the cleanest way?
I'm not sure, but I imagine there are better ways of approaching this type of image. This is just something I came up with by o...

18 días hace | 0

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How Do I Implement Histogram Normalization for RGB Image?
Unless you're converting your image to unit-scale floating point, then these operations will destroy the image. inpict = imrea...

18 días hace | 0

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How to divide an image into non-overlapping blocks?
This has been asked and answered a bazillion times, so I'll just throw this out there again. If the goal is to subdivide an ima...

20 días hace | 0

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CONVERT TEXT TO IMAGE
Old question, but let's approach this from the specifics of the original use case. We want a small image of some text. Trying ...

21 días hace | 0

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How to change scale of y-axes of an image displayed with imagesc?
imagesc() supports the specification of the x and y ranges. I don't know what your x range should be, but since this example im...

21 días hace | 0

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Change specific colour in an image
See also: https://www.mathworks.com/matlabcentral/answers/52814-switch-between-colors-on-image https://www.mathworks.com/matla...

21 días hace | 1

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How to apply adapthisteq only on part of an image
I'm going to assume that this is what you mean when you say "right half and bottom half". This will work regardless of whether ...

22 días hace | 0

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3d Surface chat, limit then extent the Z axis
In lieu of irrelevant AI-generated link spam, consider the example: % fake xyz data n = 100; x = linspace(0,100,n); % x is 10...

23 días hace | 0

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Distinguish between ASCII and Binary
See also stlGetFormat() from stltools on the FEX: https://www.mathworks.com/matlabcentral/fileexchange/51200-stltools

24 días hace | 0

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