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pleasee please i need help with this code in app designer
The character 'a' isn't valid data for plot(). You might mean plot(app.UIAxes,a) ... but passing an image to plot() isn't lik...

8 jours il y a | 0

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Shift a square matrix along a bigger square matrix by one
See either imfilter() or conv2(). If you're forced to do it manually, then there are many examples of sliding window filter...

8 jours il y a | 0

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I am getting an error in line 4 " myproj('project2.m" how do I fix this?
What Walter says is correct. I'm not going to guess what you meant, but the character it says isn't valid isn't a valid charact...

9 jours il y a | 0

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Create an alternating matrix
There are many ways. Here's one. % parameters st = 5; ev = 20; A = [0 kron(st:st:ev,[1 -1])] Here's another: B = repmat...

9 jours il y a | 1

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so i have this line code and this error pops up can anyone plz help me fix it and thank you in advance
When given an RGB image, imadjust() will accept input and output levels specified either as a 2-element vector (same levels for ...

9 jours il y a | 1

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How to add different colors in particular rows and columns?
A numeric array doesn't have a color. The numbers can represent colors, but the array itself has no color properties. Even if ...

9 jours il y a | 0

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Determining Manual ROI from a graph (not image)
That's what the data brush tool is for. https://www.mathworks.com/help/matlab/ref/matlab.graphics.interaction.internal.brush.ht...

10 jours il y a | 1

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How to take the color grade from one image and apply it to another?
The paper that @Image Analyst linked is good, but I haven't seen any MATLAB implementation. You're free to post it on the File ...

11 jours il y a | 1

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How can I smooth out the colour of a image?
There are a number of things going wrong, but the reason why it's black is simple. FilterRed = picture(:,:,1); % this is uint...

11 jours il y a | 0

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i have this code of " Power law transformation " on an image ?? why is the error occuring ??
There are a few things wrong here, but this question demonstrates one thing very clearly. If you can't be bothered to post read...

11 jours il y a | 0

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How to calculate the dynamic range of an RGB image
The error occurs because you're trying to do everything with integer data. % read an image inpict = imread('peppers.png'); i...

11 jours il y a | 0

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How can I remove the small blobs in ‘Blobs.jpg’? is it using filtering right? i got confused with the step to remove the blob on that image.
Something like this: % read an image inpict = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/148990/im...

11 jours il y a | 0

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add transparency to a contourf
The FaceAlpha and EdgeAlpha properties are new in R2022b. I'm not familiar with cotourfm() or mapping tools, so I can't comment...

11 jours il y a | 0

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Plotting Mutually-Occluding (Knit) Curves in 2D
I'm going to assume that I'm the only person who would do it by image composition, but I guess that's the niche I've made for my...

12 jours il y a | 0

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Plotting Mutually-Occluding (Knit) Curves in 2D
I'm going to take this cursory shot at doing it with plot3(). My curve construction is pretty naive, but I just found it easier...

12 jours il y a | 0

Question


Plotting Mutually-Occluding (Knit) Curves in 2D
I was browsing and doing cleanup earlier, and I came across this misplaced question-as-answer on a question about basic plotting...

12 jours il y a | 2 réponses | 0

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stacking of large matrix into stack of small column matrix
I'm not really sure what exactly you want, but I'm going to take a guess anyway. I'm going to assume that nele is possibly less...

12 jours il y a | 0

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How to look up a smaller array in a larger array while preserving shape
I'm going to demonstrate a couple ways you can do this using neighborhood operations. The case of a solid 2x2 nhood is a bit of...

12 jours il y a | 0

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Color in Edge Detection with Sobel Operator on RGB Image Output
There's some confusion going on here. The colors in the two images represent different things. Let's start with the latter. ...

13 jours il y a | 0

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Write a matlab function, image processing
There are countless sliding window filter examples here. I'm not going to write another. I don't have much patience for assign...

13 jours il y a | 0

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Find width and height of .jpg image
See this https://www.mathworks.com/matlabcentral/answers/81089-finding-the-dimensions-of-an-image That said, how do you find t...

14 jours il y a | 0

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resize images with zero padding
There are some things to consider when using padarray() to match image geometries. A = imread('cameraman.tif'); % 256x256x1 (...

15 jours il y a | 0

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How to reconstruct the images from the blocks of pixel?
Matt's answer is probably the more general answer, but I'll repeat what he said. We can't know what order you're trying to tile...

15 jours il y a | 2

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How to check if each element of a matrix is larger/smaller than the mean of the elements of the respective line?
Here's one way; I'm sure there are plenty of other ways. % some matrix A = magic(5) % row means rmn = mean(A,2) % element i...

16 jours il y a | 2

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How can I make this graph with the "for" command?
Good gravy it's been forever since I did any of this. Here's a start. ze = [0 0.2 0.4 0.5 1 1.5]; for k = 1:numel(ze) % ...

16 jours il y a | 0

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Separating YCbCr components of an image
See also: https://www.mathworks.com/matlabcentral/answers/580287-how-to-display-y-cb-and-cr-components-of-an-image#answer_95540...

17 jours il y a | 0

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how to create color checkerboard any size
I'm going to treat this as two separate questions: How to create a colored checkerboard/chessboard How to make the squares ran...

17 jours il y a | 0

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How to draw a shape using * and a loop
I seem to recall more, but I'm pretty sure I also recall some that got erased by the OP. Such are homework questions. https://...

17 jours il y a | 1

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How to rotate this 2d matrix with some angle ?
You'll need more than zdata to rotate the plot. You'll need to define the x and y positions of the points. If you just want ...

19 jours il y a | 0

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size of the left side is 2-by-1 and the size of the right side is 1-by-1001
I think this is what you're after: err_semi_imp(:,n) = max(abs(u_semi_imp_euler - u_exact(taxis)),[],2);

19 jours il y a | 0

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