Constantino Carlos Reyes-Aldasoro

City, University of London

Last seen: 3 giorni fa | Attivo dal 2016

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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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 ...

18 giorni fa | 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)

18 giorni fa | 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...

18 giorni fa | 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...

circa 2 mesi fa | 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...

circa 2 mesi fa | 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'))

circa 2 mesi fa | 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...

circa 2 mesi fa | 0

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Shifting a specific part of the graph
What have you already tried?

2 mesi fa | 0

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How to create two-dimensional boxplots
Have a look at this code: https://uk.mathworks.com/matlabcentral/fileexchange/68006-boxplot3d-create-three-dimensional-boxplo...

2 mesi fa | 0

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Error with plot command
I do not think this is a problem of plot, but rather that your variable has only 1 value and you are addressing a higher value. ...

2 mesi fa | 1

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why are my programs treated as function?
Very very hard to help without the file itself, and without knowledge of what V is. I ran that line in Matlab online and worked ...

2 mesi fa | 0

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How can I make a boxplot match at 0 with another plot?
A workaround to solve your problem is to call the boxplots with zero values in between your actual data. E.g. plot([1 2 3 4 5...

2 mesi fa | 0

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Why there are high frequency spikes in the instantaneous frequency variation vs time curve of a faulted phase current ?
It is very different to answer this question on the abstract, please add more details and figures preferably to be able to help....

2 mesi fa | 0

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how to slice 3d .fig file?
If I understand correctly, what you want is a slice of your 3D data, and add that to your figure (say one surface with one sl...

2 mesi fa | 1

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selecting area on a image and Tracking the same area in the next subsequent images automatically
Ok, the first part of this problem is rather simple, if I understand correctly, you want to select a region of interest in one i...

2 mesi fa | 0

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How do i remove an outlier?
Use a moving filter, in your case, the best would be to replace each value by the median value of a neighbourhood, that is if yo...

2 mesi fa | 0

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Generate code for randomly oriented short fiber RVE?
You are not running your loops correctly. If you ident your code (control-i) you can see better: for i=1:1:N while 1 ...

2 mesi fa | 0

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Can we move a vertex in voronoi diagram?
Yes, quite easy: X=[1 2 1.1 1.3 1.4 1.5 1.3 1.2 1.8 2.1 2.2]; Y=[1.5 1.3 1.5 1.8 1.4 1.6 2.5 2.3 2.4 1.1 1.8]; vorono...

3 mesi fa | 0

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Can LBP be used for flame analysis?
Assuming that LBP stands for Local Binary Patterns, I would say it depends. If you already have the flame located and segmented,...

3 mesi fa | 0

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How to caluclate centroid of a voronoi cell of a voronoi diagram.
This is not a trivial problem especially because the voronoi algorithm does not give you a series of closed polygons, i.e. chang...

3 mesi fa | 0

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How to detect cricket wide ball in video using Matlab .
It is not simple to offer any help here. Any image processing or video processing depends totally on the images or videos, which...

3 mesi fa | 0

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I need help to make graphs please
It is easier to help for specific questions, i.e., you tried something and it did not work. The way you have phrased this is mor...

3 mesi fa | 0

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Splitting a color image into sub-images only displays the yellow color
From the images it seems that your channel (the yellow one) is saturated. Have you tried to display the three RGB channels is se...

4 mesi fa | 0

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How can i do Orthogonal and Log transformations in image processing
Hello Many of the steps that you want to do can be done with one command of the image processing toolbox https://uk.mathwork...

4 mesi fa | 1

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I have a problem with movie2avi in a code of 2010
Very hard to help without more details, have you tried using breakpoints along the code to stop and see what is going on? Have y...

4 mesi fa | 0

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how to open .mat data in to excel sheet
You better export your data from Matlab into excel directly: https://uk.mathworks.com/help/matlab/import_export/exporting-to-ex...

5 mesi fa | 0

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Change direction of the Y-axis for a single figure
What you need is to rotate, try imrotate https://uk.mathworks.com/help/images/ref/imrotate.html?searchHighlight=imrotate&s_ti...

5 mesi fa | 0

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How do I clear the gradient of an image across pixels? (Image processing for the intensity of fluorescence)
Hello I am afraid the question is not very clear. What do you mean by "doesn't have a clear gradient across the pixels"? This s...

5 mesi fa | 0

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How can I smooth a surf with many spikes?
If you just want to smooth the values, you could use a filter, from a small uniform filter like [1 1 1;1 1 1;1 1 1]/9 to a Gauss...

5 mesi fa | 0

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compare edge detected images
It is a bit difficult to help without context and illustrations. If you could add some figures it would be easier to help.

6 mesi fa | 0

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