DGM

Last seen: Today | Actif depuis 2015

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 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 ...

1 jour il y a | 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 ...

4 jours il y a | 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',...

4 jours il y a | 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...

4 jours il y a | 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...

4 jours il y a | 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 ...

5 jours il y a | 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'...

8 jours il y a | 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 ...

8 jours il y a | 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...

8 jours il y a | 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...

9 jours il y a | 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 =...

10 jours il y a | 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...

10 jours il y a | 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...

12 jours il y a | 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...

12 jours il y a | 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...

12 jours il y a | 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...

12 jours il y a | 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...

14 jours il y a | 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...

14 jours il y a | 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

15 jours il y a | 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...

15 jours il y a | 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...

16 jours il y a | 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...

17 jours il y a | 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 ...

18 jours il y a | 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...

18 jours il y a | 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...

19 jours il y a | 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 ...

20 jours il y a | 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...

21 jours il y a | 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

22 jours il y a | 0

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How should I go about assigning a color to a range of values in a 1800x1200 array?
If you're just trying to make the whole thing pseudocolor based on known limiting values (e.g. the extrema of the image data), t...

22 jours il y a | 1

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I want to display images at their original sizes (e.g., new_img is larger than main_img, but when shown, they appear to be the same size).
Consider this as a compromise if the goal is simply to illustrate the relative scale. main_img = imread('peppers.png'); main_i...

22 jours il y a | 0

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