Constantino Carlos Reyes-Aldasoro
City, University of London
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.
Statistics
RANK
312
of 257.933
REPUTATION
232
CONTRIBUTIONS
2 Questions
144 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
41
RANK
2.782 of 17.771
REPUTATION
542
AVERAGE RATING
3.70
CONTRIBUTIONS
18 Files
DOWNLOADS
86
ALL TIME DOWNLOADS
4815
RANK
of 110.149
CONTRIBUTIONS
0 Problems
0 Solutions
SCORE
0
NUMBER OF BADGES
0
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Accept 2 answers given by other contributors
Awarded to Constantino Carlos Reyes-Aldasoro on 15 Feb 2022
20 of your answers have been accepted
Awarded to Constantino Carlos Reyes-Aldasoro on 03 Dec 2020
Answer 10 questions that were unanswered for more than 30 days
Awarded to Constantino Carlos Reyes-Aldasoro on 03 Dec 2020
Contribute at least one answer each month for 12 consecutive months
Awarded to Constantino Carlos Reyes-Aldasoro on 02 Sep 2020
Your submissions received 10 five star ratings
Awarded to Constantino Carlos Reyes-Aldasoro on 17 Jul 2020
Your submissions were downloaded 100 or more times in a month
Awarded to Constantino Carlos Reyes-Aldasoro on 01 Nov 2019
Publish your first review
Awarded to Constantino Carlos Reyes-Aldasoro on 09 Oct 2019
Have 3 submissions connected to GitHub
Awarded to Constantino Carlos Reyes-Aldasoro on 09 Oct 2019
Publish your first submission
Awarded to Constantino Carlos Reyes-Aldasoro on 09 Oct 2019
Accept 1 answer given by other contributors
Awarded to Constantino Carlos Reyes-Aldasoro on 20 Jul 2018
Provide your first answer ever to someone else's question
Awarded to Constantino Carlos Reyes-Aldasoro on 20 Jul 2017
Content Feed
Hough transform incorrectly identifying vertical line segments
Ok, 2 things, you are first comparing and then subtracting, which may be counteracting, you could calculate hough directly like ...
4 días ago | 0
Hough transform incorrectly identifying vertical line segments
Have you tried inverting the intensities of the image? As it is, white is the main element and that will be difficult to obtain ...
4 días ago | 0
Why are title and label not working on histogram?
You are using the commands incorrectly, by writing title = ('Temperatures @ Top') you are creating a new variable called title w...
17 días ago | 0
| accepted
Change variable name in plot
As mentioned before, this is not the best way to handle your data, BUT you are where you are, so to be able to use the names run...
17 días ago | 0
2D color map change the input of y axis
Hello There are 2 ways to change the values of the y axis, first is to change the values when you plot. I do not have your fi...
18 días ago | 0
| accepted
Asignar matriz automaticamente.
Hola Primero te recomendaria escribir en ingles para aumentar la posibilidad de que respondan las preguntas. Segundo, para que ...
18 días ago | 1
Filter out small dust in image!
Where exactly are the rocks that you want to count? There is a lot of green but I cannot immediately see any rocks.
alrededor de 2 meses ago | 0
Bar Plot Legend and Axes
Hi First, to plot the subplots together, you need to grab the handles of each axes, i.e. figure h1=subplot(141); h2=subplo...
3 meses ago | 0
Smoothing colormap of plotted image
If you only want to smooth the final data, you can try with filters, e.g. imagesc(medfilt2(abs(Y),[5 5 ])) imagesc(imfilt...
3 meses ago | 1
| accepted
How to calculate the centroid / center of a patch?
The data X,Y must have been previously calculated from some raw data, say a thresholded figure, it is from that data you can eas...
3 meses ago | 2
Error of the following code : "Array indices must be positive integers or logical values."
Not very clear, what are length_ijk and index_ijk? in the files you have added, miu has 262144 values, ind has 77 and freq has 6...
5 meses ago | 0
Not able to write the image by reading xcel files generated , getting error of data type as shown in picture attached. Anybody please help.
This is not very clear, it would be better to copy the code instead of figures and provide a sample file so that the case can be...
5 meses ago | 0
How to add colormap on an image?
I guess that this is a 2 step question, you want to add a colormap and then export as a png or jpeg, try the following, read an ...
6 meses ago | 0
What is a good performance metric for pixels classification tasks
One good metric is the Jaccard Index, or the Intersection over Union. What this metric does is to divide true positives over th...
6 meses ago | 0
| accepted
Does anyone know how to create graphics of the same size?
Hello You can use the command "print" https://uk.mathworks.com/help/matlab/ref/print.html?searchHighlight=print&s_tid=srcht...
6 meses ago | 0
double data type in image processing
Another easy way around this is to divide the doubles by 255 X=imread('cameraman.tif'); %read the cameraman image X=doubl...
7 meses ago | 1
Random shuffle of vector elements
This can be easily done by addressing the vector correctly. First you need a random order to shuffle your elements. You can do t...
8 meses ago | 1
| accepted
how can i use a Gaussian gradient routine for remove the out of focused section in image processing
You could refine your processing using bwlabel to assign unique labels to the regions you have already detected. Then use region...
8 meses ago | 0
| accepted
A ’BGR’ image.
Hello: First, changing channels is very simple you just need to change the third dimension of the image, e.g. image1=imread('p...
9 meses ago | 1
| accepted
I cannot save matlab editor, the .m file.
I guess that you must have used some special characters like accents, have you copy-pasted something into the editor?
10 meses ago | 0
Detecting a stain in a texture
This would not be that difficult, marble = imread('https://upload.wikimedia.org/wikipedia/commons/f/f3/SierraXenolith.JPG'); ...
10 meses ago | 0
I need to find the phase of the images.
Hello The image that you show could be that of a phase, but it is hard to judge from what you are showing. In any case, here is...
10 meses ago | 3
unshow unnecessary intervalls in a histogramm
Hello: What you need to do is rather simple if you capture the values of your histogram, instead of using hist to display dir...
10 meses ago | 0
Mean computaion in matlab
If your data is in a matrix of dimensions [samples x 3], e.g. data=[lon1 lat1 value1; lon2 lat2 value2; lon3 lat3 value3; ...
10 meses ago | 0
| accepted
convolution of 2 signals
You are confusing functions. conv is used to obtain the convolution, subplot is used to divide a figure and then plot inside eac...
10 meses ago | 0
Compute convolution y[n]=x[n]*h[n]: x[n]={2,0,1,-1,3}; h[n]={1,2,0,1}
What exactly is your question?
10 meses ago | 0
How can I extract the GLCM features from each nucleus of mircroscope blood smear image?
One way to do this would be to crop each region, once you have found each object, you can use regionprops to determine the extre...
11 meses ago | 0
How to Loop to plot histogram and line plot?
The following is not clear and most probably your error: for i=4:8;k=1:2 subplot(1,2,k) plot(Temp(:,3),Temp(:...
12 meses ago | 0
fprintf or fwrite non ASCII characters
Have you tried using TeX formatting? I.e. \alpha \sigma \mu https://uk.mathworks.com/help/matlab/creating_plots/greek-letters...
12 meses ago | 0
