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.

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...

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...

14 días ago | 0

| accepted

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 ...

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 ...

alrededor de 1 mes 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...

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...

alrededor de 1 mes ago | 0

| accepted

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...

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...

alrededor de 2 meses 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 = ...

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 = ...

alrededor de 2 meses 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...

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 meses ago | 0

Answered

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.

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 meses 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...

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...

4 meses ago | 0

| accepted

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...

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 meses 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...

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 meses 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...

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 meses 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...

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 meses ago | 0

Submitted

Cell Migration in Scratch Wound Assays

Analyse and measure migration in Scratch Wound Assays

5 meses 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...

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 meses ago | 0

| accepted

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 ...

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 meses 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...

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 meses ago | 0

| accepted

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...

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 meses 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...

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 meses 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...

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 meses 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 ...

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 meses 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...

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 meses 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...

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 meses 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...

Need help with string counting

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

9 meses 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...

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 meses 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...

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 meses 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...

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 meses ago | 0

| accepted

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...

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 meses 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...

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 meses 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));

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));

11 meses 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...

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...

11 meses ago | 0