Constantino Carlos Reyes-Aldasoro - MATLAB Central
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Constantino Carlos Reyes-Aldasoro


City, University of London

Last seen: 9 månader ago |  Active since 2016

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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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Answered
Matlab Mobile on iPad with Smart Keyboard, how do I press "F9" to run a portion of highlighted code?
Hello I found a work around, it is not the same but it may be useful. If you convert your file from a script (*.m) to a live ...

9 månader ago | 0

Answered
how to plot a POINTING POINTER correctly
I ran in my computer and it worked well, I guess it must be something related with the interpreter (Tex,Latex,...) and how the a...

10 månader ago | 0

| accepted

Answered
imread issues when loading large TIFF's
Hello I have found a way around this. Instead of using imread, I used blockedImage bim= blockedImage(nameOfYourFile); imLevel...

10 månader ago | 1

Answered
intersection volume (mesh)
If these are points in the same coordinate system, could you find those points that occur in both cases? that would give you an ...

11 månader ago | 0

Answered
Find similarities between two signals
Perhaps this file exchange analysing an ECG signal can give you some ideas: https://uk.mathworks.com/matlabcentral/fileexchan...

11 månader ago | 0

Answered
Operator '<' is not supported for operands of type 'struct'.
Hard to know the exact issue without access to all the code and variables but most probably it is because you cannot compare a s...

11 månader ago | 0

Answered
Saving multiple plots into one handle
Why don't you save your results in a variable, as a matrix x2(ind2,:) = x; uh2(ind2,:)=uh; and then once you have all, then you ...

12 månader ago | 0

| accepted

Answered
Code runs very slow after making small changes
Are you plotting your results? If you are, and you are doing many of these, it may be the case that that is what is slowing down...

12 månader ago | 1

Answered
Printing figure as pdf with long legend produces unncecessary whitespace
I am not sure that I understand the problem, I tried in my computer and obtained a figure like the one below (this is jpeg, but ...

ungefär ett år ago | 1

Answered
Faster Image Processing?
Two nested for loops with images is not an efficient way to deal with matrices or images. The point of Matlab is to handle every...

ungefär ett år ago | 0

Answered
How to correct matrix dimensions and recombine blocks into original image?
It is hard to follow your code without the data, but still the error must be that when you are trying to sum your image and the ...

ungefär ett år ago | 0

Answered
How can I do segmentation using edges and fill
Change from RGB to HSV and then segment via the colour space, that would give you differences between the background, the lower ...

ungefär ett år ago | 0

| accepted

Answered
How to change the desired xaxis ticks and subsequent values in log log plot?
Hello There are 2 separate properties that you have to handle, one is the ticks and the other is the ticklabels, and both are b...

ungefär ett år ago | 0

Answered
how to calculate entropy of a video file?
The entropy measures the amount of uncertainty (https://en.wikipedia.org/wiki/Entropy_(information_theory)) and to be able t...

ungefär ett år ago | 0

Answered
¡Como puedo resaltar la intersección de dos o mas líneas en un grafico de guide?
Hola Primero, te conviene escribir en ingles porque en espanol hay menos oportunidad de que alguien te ayude. Con respecto al ...

ungefär ett år ago | 0

Answered
I want to Nails Semantic Segmentation using the nail image from fingers
Hello Mithun This is not the way Matlab Answers work. Here people will try to help you when you have a problem and you get stuc...

ungefär ett år ago | 0

Answered
Why I got small dice score when I compared between two skeletonize images?
It may be correct to have a small Dice score. Dice (https://en.wikipedia.org/wiki/S%C3%B8rensen%E2%80%93Dice_coefficient) as we...

ungefär ett år ago | 0

Answered
For Loop iteration only displays last plot in PPT slides
Try using drawnow after view. It may just do the trick.

ungefär ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 1

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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-...

mer än ett år ago | 0

Answered
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.

mer än ett år ago | 1

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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 ...

mer än ett år ago | 0

Answered
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...

nästan 2 år ago | 1

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