Community Profile

photo

Constantino Carlos Reyes-Aldasoro


City, University of London

Last seen: 2 días ago |  Active since 2016

Contact

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

All
  • Thankful Level 2
  • Knowledgeable Level 4
  • Revival Level 3
  • 12 Month Streak
  • 5-Star Galaxy Level 4
  • Personal Best Downloads Level 3
  • First Review
  • GitHub Submissions Level 3
  • First Submission
  • Thankful Level 1
  • First Answer

View badges

Content Feed

View by

Answered
Image Processing for Grain Size Analysis
You need to define your task first. What is it that you want to "calculate"? I am going to make an educated guess that it is the...

5 días ago | 0

Answered
Save a plot figure without the white background AROUND THE AXES
The issue is that you are trying to do 2 things in one, save as jpg, and have a transparent background. As far as I understand t...

5 días ago | 0

Answered
How to Make Segmentation of a Circular optic nerve in the eye for a Multiple images?
This question is about how the optic disc is defined, have you tried anything yet? Have you checked the literature about this? I...

26 días ago | 1

Answered
Vector estimate of importance of each word in a text
Why don't you start with a simpler problem, say that you want to count the occurrences of certain words. That would be a problem...

26 días ago | 0

Answered
How do I remove noise from point cloud data?
Hello It is very difficult to answer a question like this one, it may be that some filtering could solve your problem, but it d...

26 días ago | 0

Answered
How to use OpenCV imopen in Matlab?
Why don't you use matlab's native imopen function? https://uk.mathworks.com/help/images/ref/imopen.html

alrededor de 2 meses ago | 0

Answered
Read the text files names are already in the table
If they are inside a folder, you could read the files in the folder and then loop over those files. If you have the names and ...

alrededor de 2 meses ago | 0

| accepted

Answered
Converting binary to image file
You are mixing many things. If you use 'sobel' between single quotes you are using a string with the characters s o b e l. ...

alrededor de 2 meses ago | 0

Answered
Deep Network Designer with dicom images
DICOM is treated differently than normal images as you will have many fields related with the images (like patient data). Have y...

alrededor de 2 meses ago | 0

| accepted

Answered
how to view 4D-single Image
Hello It depends very much what you want and where you data comes from. A 4D data set may be a 3D + time data set and thus you ...

3 meses ago | 0

Answered
Weird characters when editing figure
I would suggest that you do not edit the text of figures. The whole idea of using Matlab instead of photoshop/gimp/illustrator i...

3 meses ago | 0

Answered
Bar graph and "stacked" options.
This is solved easily by adding zeros in the columns that you do not want a stack, e.g. bar ( [1 2 3;0 2 3;0 0 6]','stacked')...

3 meses ago | 1

| accepted

Answered
Loading multiple datafiles into MATLAB and plotting a colourmap
In Matlab, the command "colormap" corresponds to the color/colours that are assigned to the intensity of a figure. You display 2...

3 meses ago | 0

Answered
Problem saving plot as jpg or pdf
You could try to add the legend outside the actual axes, e.g. 'eastoutside', have a look here: https://uk.mathworks.com/help/ma...

3 meses ago | 1

| accepted

Answered
Grain Model how to remove smaller grains
Ok, I think now I understand your problem. I thought you had information on the grains themselves, but if you are starting with ...

4 meses ago | 0

Answered
Grain Model how to remove smaller grains
A bit difficult to help more without the data but I think that your problem can be fixed by selecting your grains by the propert...

4 meses ago | 0

Answered
how to find index in matrix and average data ?
You can try the following, instead of "finding" the locations, which will be the indices, just use the locations like this: sst...

4 meses ago | 0

| accepted

Answered
How to make a loop inside a loop?
Difficult to answer without more context, but I suspect that the error is not related to the loops but something else. There are...

4 meses ago | 0

Answered
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 meses ago | 0

Answered
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 meses ago | 0

Answered
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...

5 meses ago | 0

| accepted

Answered
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...

5 meses ago | 0

Answered
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...

5 meses ago | 0

| accepted

Answered
Asignar matriz automaticamente.
Hola Primero te recomendaria escribir en ingles para aumentar la posibilidad de que respondan las preguntas. Segundo, para que ...

5 meses ago | 1

Answered
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.

6 meses ago | 0

Answered
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...

7 meses ago | 0

Answered
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...

7 meses ago | 1

| accepted

Answered
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...

7 meses ago | 2

Answered
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...

9 meses ago | 0

Answered
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...

9 meses ago | 0

Load more