Constantino Carlos Reyes-Aldasoro

Last seen: 6 dagen ago

City, University of London

115 total contributions since 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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Answered
RGB and LAB values
RGB, LAB, HSV and many others are colour spaces, that is how to create colours that resemble what natural colours are, see for i...

7 dagen ago | 0

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Answered
Plotting 1000 signals into one graph
First of all: for (i=1,i<=1000, i++), This is not Matlab, looks like java, in Matlab it would be for i=1:1000 ...

29 dagen ago | 0

Answered
Filling a Vector with Find Function
This line does not look like Matlab syntax, it looks more like a python loop x [x, find(Call == Win(i,j))]; I would suggest th...

29 dagen ago | 0

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Answered
How to subplot figures reopened from .fig files correctly when they containing images?
What you have to do is to grab each element by its handles, to grab the handles of a figure you use >> h0=gcf; then you can ac...

ongeveer 2 maanden ago | 0

Answered
Conv() not working
Could it be that you tried with uppercase C as in Conv and not with lower case as in conv? >> conv([1 1],[2 2]) ans = ...

ongeveer 2 maanden ago | 1

Answered
I want to generate spherical from three given arrays, please help me out.
We would need a better explanation of exactly what you want, but I think that the main issues are: 1) you are using sph2cart ins...

3 maanden ago | 0

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a MATLAB function that calculates area of segmented thermal image
Hello This may be possible but cannot help without looking at the image and the area to be segmented.

3 maanden ago | 0

Answered
How to include a vertical scale besides of a polar plot ?
This is easy, but you need to use handles if you want the figure to look like the one you show. And also, you have to think of t...

3 maanden ago | 0

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Answered
How to create empty XYZ image matrix
In addition to the above, you can also consider zeros emptyMatrix = zeros(x,y,z); And then you can add values into that ma...

4 maanden ago | 0

Answered
growing bubbles with a predetermined radius in a given volume?
There is too little information to answer this question properly. Do you mean non-overlapping bubbles? and that they contact eac...

4 maanden ago | 0

Answered
How to split a 3d matrix into sub-3d matrices?
There is not enough information to be certain about your question, but by addressing your matrices you can create submatrices li...

4 maanden ago | 0

Answered
Image shows with imshowpair, but not with imshow
You have two options, use subplots subplot(121) imagesc(midAirImage) subplot(122) imagesc( bwImage) Alternatively you can...

4 maanden ago | 0

Submitted

Cell Migration in Scratch Wound Assays
Analyse and measure migration in Scratch Wound Assays

4 maanden ago | 3 downloads |

Answered
Methods for analysis of plots in image processing
This seems rather simple. First, project your data to a single dimension, say your image is called data_2D, data_1D = sum(dat...

5 maanden ago | 0

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Answered
how to remove spot from an image.?
You should look for the extreme values of the intensities. The dark regions of the image are not as dark as the circle, so find ...

5 maanden ago | 0

Answered
Multiple contour plots with one colorbar
Hello I think you have asked a similar question, or at least the answer is similar and it is to use the handles of each element...

6 maanden ago | 0

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Answered
Segmentatio of ecg signal
Hello As mentioned previously, it is not possible to answer without more knowledge of the case itself. But I can point you to t...

7 maanden ago | 0

Answered
Fixing the appropriate threshold level to binarize a droplet image where the droplet area is found to vary with the threshold
Dear Anjan There is no exact way to decide the threshold. To illustrate this, I have taken a profile line to illustrate the i...

7 maanden ago | 0

Answered
How can I change data directly from the plot ?
To complement what Mehmed has just posted. It would be even easier if when you first create your figure, you save in handles all...

7 maanden ago | 2

Answered
How can i find the fundamental frequency of the signal using the autocorrelation function?
Have you considered using the Fourier Transform to convert from time domain to Frequency domain? There you can find the highest ...

7 maanden ago | 0

Answered
Not enough input arguments. Help?
Your problem may be that you are calling your function without the required input parameters your function requires one paramete...

8 maanden ago | 0

Answered
Why am I getting Nan values?
Hello There are several issues, but primarily about the way you use your code. 1) The code as it is is very long and convol...

8 maanden ago | 0

Answered
Need help with string counting
Perhaps the error is here: if strfind(str,'A') dydis = dydis + length(A); end You are detecting...

9 maanden ago | 1

Answered
Doubt in MATLAB coding.
This is a bit hard to solve without knowing more of the problem. What I would do is to break down the problem and analyse each s...

9 maanden ago | 0

Answered
How can I extract features about image texture?
Hello The basic concept of texture is that you will transform your image, which has a certain texture, to a different space, wh...

10 maanden ago | 0

Answered
what is a method for segmentation texture?
Hello The basic concept of texture is that you will transform your image, which has a certain texture, to a different space, wh...

10 maanden ago | 0

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Answered
Create empty rows in a cell, based in a condition
Hello I do not know why there should be rows that are skipped, unless you are copying and pasting and something goes wrong. I h...

10 maanden ago | 0

Answered
Reference to non-existent field 'a'.
This error is arising from trying to read a field from a structure, when the field is not existing for example >> example.a = 1...

10 maanden ago | 0

Answered
How to perform morphological reconstruction by dilation?
Dilation is rather simple, but perhaps there are more steps to what you want: f9_dil = imdilate(f9,strel('diamond',3));

10 maanden ago | 0

Answered
How to perform morphological reconstruction by dilation?
Dear Krishna I have seen several of your questions, I think that you would greatly benefit if you would study some Matlab and...

10 maanden ago | 0