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Constantino Carlos Reyes-Aldasoro


City, University of London

Last seen: environ un mois il y a |  Actif depuis 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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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 ...

environ 2 mois il y a | 0

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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...

3 mois il y a | 0

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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...

3 mois il y a | 1

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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 ...

4 mois il y a | 0

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

4 mois il y a | 0

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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...

4 mois il y a | 0

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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 ...

5 mois il y a | 0

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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...

5 mois il y a | 1

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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 ...

5 mois il y a | 1

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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...

6 mois il y a | 0

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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 ...

6 mois il y a | 0

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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 ...

6 mois il y a | 0

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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...

6 mois il y a | 0

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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...

7 mois il y a | 0

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¡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 ...

7 mois il y a | 0

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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...

7 mois il y a | 0

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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...

8 mois il y a | 0

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

8 mois il y a | 0

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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...

9 mois il y a | 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...

9 mois il y a | 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...

9 mois il y a | 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...

9 mois il y a | 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...

11 mois il y a | 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...

11 mois il y a | 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-...

11 mois il y a | 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.

11 mois il y a | 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...

environ un an il y a | 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...

environ un an il y a | 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 ...

environ un an il y a | 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...

environ un an il y a | 1

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