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How to sketch the given solid and its condition?
For simple visualization, it's often sufficient to just truncate the surfaces by setting the excess values to NaN. % plot dom...

alrededor de 5 años hace | 0

Respondida
[newbie] I was given a code with vectors/matrices and don't exactly know the meaning of vars/parameters
Just looking at the question lines: %[a,b,nvec]=size(codeb_start); % ??? what is nvec, couldn't find exact meaning (new vector?...

alrededor de 5 años hace | 0

Respondida
Issue reading (or?) writing transparency data from PNG with transparent background and feathered edges.
Imshow() and most things in IPT aren't really set up to handle RGBA data directly in any convenient way. This is an example of ...

alrededor de 5 años hace | 1

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Respondida
plz help how can use go to in MATLAB
I'm going to guess that the nonzero content of the "truth taple mapping" vector is supposed to correspond to the locations where...

alrededor de 5 años hace | 0

Respondida
how can i do this?
Here, at least this can possibly run. Truth_Taple_mapping = {'T' '0' '0' '0' 'G' '0' '0' 'G' '0'}; dna_stego={'ATG' 'TCG' 'AT...

alrededor de 5 años hace | 0

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multiple a vector by a scalar using dot error
I guess I already mentioned this, but A = num2cell(reshape(1:70,10,[])) A{2:2:end,7} % this expression has multiple outputs (m...

alrededor de 5 años hace | 1

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Findd non nun values indexes in every row of a matrix
You could do this: A = [1 1 1 NaN 1 1 1 1 1 1 2 2 2 2 NaN 2 2 ...

alrededor de 5 años hace | 0

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given a contour returned by contourf,how to display the pixel values within a region
Why are you trying to get the pixel value of a contour map? The pixel values of the contour map don't tell you anything about t...

alrededor de 5 años hace | 1

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How does imresize 'Antialiasing' work?
If I recall from digging through the code before, it mentions using a modified kernel to simultaneously interpolate and antialia...

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Get number after colon
I don't know that I'd bother trying to directly operate on the table. Maybe there are tools that make that easier, but I never ...

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Respondida
What frustrates you about MATLAB? #2
I keep being reminded of this every time I accidentally destroy my own work or have to process someone else's crusty images. ...

alrededor de 5 años hace | 1

Respondida
How to get clean and high resolution images for figures
I know everyone already mentioned it, but I feel the need to emphasize it whenever I can. Unless you understand what settings ...

alrededor de 5 años hace | 2

Respondida
Could anyone help me how to save the bar graph in png format.
I'm not sure what you mean by "while the command executes", but... An example: y = [2 2 3; 2 5 6; 2 8 9; 2 11 12]; bar(y) ap...

alrededor de 5 años hace | 0

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Getting an array of points along an arc
This is basically the same as this answer, but maybe the explanation helps a bit: https://www.mathworks.com/matlabcentral/answe...

alrededor de 5 años hace | 0

Pregunta

Plots have defect when saved from axes context menu in R2019b
I ran across this issue when trying to answer a question for someone else: https://www.mathworks.com/matlabcentral/answers/8856...

alrededor de 5 años hace | 0 respuestas | 0

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Writing 3D array to BMP file
imwrite() doesn't support multipage/multiframe BMP files, because (as far as I know), the format specification for BMP doesn't a...

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Sudden error "Unidentified function or variable"
Did you read what the error message said? Unrecognized function or variable 'X'. Error in untitled (line 3) Z1 = zeros(1, len...

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How can I mark points of the period length on stem of cos?
You're running into problems because your sampling rate means that your samples (other than the first one) don't neatly line up ...

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how to define that function in matlab
I could bark out the boilerplate response for low-effort copypasted homework questions, but I'm out of breath today. Let's sett...

alrededor de 5 años hace | 0

Respondida
I want to shorten a string.
You can use regexp() on either strings or chars. timestamp = 'Start=2021-06-11T:12:32:04:122'; out = regexp(timestamp,'(?<=:...

alrededor de 5 años hace | 0

Respondida
extract the intersection of two matrices
I have a feeling that the range of data in B isn't what you think it is. Using the compositing method involving -1 is probably ...

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Unable to display cropped image in the image axes properly
I'm not sure if you realize that you're starting an interactive imcrop() session. imshow(imcrop(M),'parent',handles.axes2); ...

alrededor de 5 años hace | 0

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How to construct a "ones" matrix with zero blocks in the diagonal
This display is going to get cut off, but this should serve as an example. A = ones(4); B = 1 - blkdiag(A,A,A,A)

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circle problem, circumscribed to another circle and the area, area per image detection
This could be improved or elaborated, but it's a simple start: % let's assume that 1px = 1 square meter r = 400; C = rand(10,...

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How to combine and rgb and a thermal image?
Let's just start with concatenation. We have two test images: an RGB visible image and a single-channel thermal image. How I m...

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Chang a color in an image to black
Improving selectivity of the orange mask is really only half the battle; you'd need to also restrict the red mask to keep them ...

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Error: Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 1-by-41.
It's unclear what your intentions are. If I assume you're trying to do this all elementwise WRT h, then you missed an index: p...

alrededor de 5 años hace | 0

Respondida
How to display multiple ROI (masks) in different colors on one image?
I know this is probably too late to help, but consider this: fontSize = 16; Image = imread('Report_Picture.png'); [rows, colu...

alrededor de 5 años hace | 1

Respondida
Help correcting the sequence function
% if you're asking the user for a number, use a clear description % "sequence matrix" doesn't tell anyone what the number mea...

alrededor de 5 años hace | 0

Respondida
Contourf colorbar color range
If you want a discrete colormap with nonuniformly-spaced breakpoints, you're going to have to make one. You're probably using a...

alrededor de 5 años hace | 0