Constantino Carlos Reyes-Aldasoro

City, University of London

Last seen: 26日前 | 2016 年からアクティブ

Senior Lecturer in Biomedical Image Analysis at City, University of London. Huge Matlab fan, wrote the book "Biomedical Image Analysis Recipes in MATLAB: For Life Scientists and Engineers" published by Wiley-Blackwell.

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Laplace pyramid uses gaussian filter or binomial filter?
The original Burt and Adelson paper specifically uses a Gaussian filter https://ieeexplore.ieee.org/document/1095851 The Gauss...

約1ヶ月前 | 0

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resize matrix based on indices
This is an example of what is called "addressing a matrix", i.e., you need to use the address of certain locations of a matrix i...

約1ヶ月前 | 0

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Image-based glue track quality detection
You can start by labelling each region of your data with bwlabel (https://uk.mathworks.com/help/images/ref/bwlabel.html) and the...

約2ヶ月前 | 1

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how to know a intersection point at a line with specific slope?
Do you have your line as an equation? You could then tabulate the values of x,y,z to find the points. Then you can find the dist...

約2ヶ月前 | 0

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How to make graph instead of disp in command window for real time measurment
disp will display a value or text on the command line, if what you want is a graph, then you will need to save that value into a...

3ヶ月前 | 0

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plotting graph on matlab in linux server connected via ssh
I am not sure if I have understood your problem, but I think that you have connected via ssh and thus running on a commmand-line...

3ヶ月前 | 0

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How to rotate a pointcloud data and align parallel with y-z axis?
This answer may solve your problem https://uk.mathworks.com/matlabcentral/answers/123763-how-to-rotate-entire-3d-data-with-x-y-...

3ヶ月前 | 0

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Make the black lines of a gabor thinner than the white lines in psychtoolbox
Very hard to help with questions like this. Please try to include your code, sample data and what you have already tried.

4ヶ月前 | 1

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How to define a constraint in MATLAB
You will not easily get someone to code for you. Best way to get help is to try something and if it does not work or you have pr...

5ヶ月前 | 0

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Symbols not working after MATLAB update
Something similar to this happened to me when I migrated code from Windows to a Mac. It is annoying as things are not 100% trans...

5ヶ月前 | 0

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Valley/Ridge tracing in N-D data
Hello Not sure if you still need this, but I have implemented a ridge tracing using Lindeberg's Scale Space algorithms. The ...

5ヶ月前 | 0

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How to increase the length and thickness of the arrows in the EHfields plot
Hello Changing the thickness is not too difficult, but changing the length may be rather complicated. Let me illustrate. You ca...

6ヶ月前 | 1

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How to find active contours of multiple images simultaneously and how to overlay multiple of them?
Post what you have done so that it is possible to help.

6ヶ月前 | 0

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Check the output is less than a limit for a period of time
This is a simple case of a comparision function < threshold

6ヶ月前 | 0

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Matlab out of Memory and cannot be released
I think that you are not clearing what is consuming the memory, e.g. audio_data=get_audio();% a record object is called in th...

6ヶ月前 | 0

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Subplot disappeared after getting its handle
Ok, I have now seen that the error is in the object that you are trying to copy, it should NOT be the subplot, but the actual ob...

7ヶ月前 | 0

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How to save training process output in MATLAB?
That should be pretty easy, train whatever architecture you are using (say you call that net) with whatever training data. Once ...

7ヶ月前 | 0

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Subplot disappeared after getting its handle
The problem is the order in which you are passing the commands, you create a subplot in a figure, then you call for a new figure...

7ヶ月前 | 0

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My plot for a photon traveling around a black hole isn't updating.
Is h_time being updated? if yes, then it may be due to the initial display with h_traj = plot(nan, nan); try not using nans bu...

7ヶ月前 | 0

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Change size and location of plot area in plot window
You need to learn how to use the handles. Instead of just plotting things, grab the handle to the figure and the axes and then...

7ヶ月前 | 0

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Trying to randomly permute a time series, error with time point
A=[1 2 3 4 5 6 7] A(1:3) A(-1:2) Yes, Matlab needs the index of the position starting from 1, so if you use negative numbers ...

7ヶ月前 | 0

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Create colorbar outside of parent of axes
That is easy, when you create figures and plots, you can grab the handle and then you can modify its properties: a = rand(64); ...

8ヶ月前 | 1

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to extract information from a text file?
You can solve this problem by finding strings in the text that you have. Let's save the example that you have shown in variable ...

8ヶ月前 | 0

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Can I overlay a large number of image?
Hello You can always overlay things by summing them, say your data is a 3D stack and each layer is one of your frames, a ...

9ヶ月前 | 0

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Trying to get an answer for 'a' - while loop??
Run the code! a=0 while a<5 a = a + 2; end disp (a)

9ヶ月前 | 0

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How to fix this error : Not enough input arguments.
Hello Most probably you are not calling the function with all the necessary input parameters, look at this example in which t...

9ヶ月前 | 1

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Is there any better alternative of four nested loops?
Hi In Matlab, if you think in matrices you can avoid many many many loops. For example, if you want to find if a column of a ce...

10ヶ月前 | 0

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How to split the last 4 elements in a column into a new column?
In Matlab is better to think of matrices than to think of columns (like you would do in Excel for instance), so think of your fi...

10ヶ月前 | 0

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Using Matlab compiler, accents are replaced by question marks.
try using the ascii code for the letters that you want to be displayed, e.g. disp(strcat('d',233,'terministes'))

10ヶ月前 | 0

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How to visualise results of regionprops3 function?
What regionprops will do is to calculate the metrics for each of the elements in your data, and you can then use these to select...

10ヶ月前 | 0

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