# BA

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**Content Feed**

Question

How to plot a heatmap image using PCA loadings?

I need some guidance to plot or reconstruct a heatmap image as the attached image used PCA loading.

1 month ago | 0 answers | 0

### 0

answersQuestion

Error with anisotropic diffusion script

I tried to use the attached 'anisotropic diffusion' script but it gives me an error that it does not work on 3d image. I wonder ...

1 month ago | 1 answer | 0

### 1

answerQuestion

How to get the first derivative of pixels along of line?

#Here's my code #it works for one frame when I did 'plot(diff(test))' but I need a way to implement it to the whole images ims...

2 months ago | 1 answer | 0

### 1

answerQuestion

How to increase the resolution of a list of images

I did 'image variance' for a list of images but the region of interest shows black line (see picture 1) instead of white as in...

2 months ago | 1 answer | 0

### 1

answerQuestion

How to concatenate/combine a list of images in one mat.file (convert picture 1 into picture 2)

I tried a loop but it did not work: for i = 1:size(df,3) imshow(df(:,:,i)) end

2 months ago | 1 answer | 0

### 1

answerQuestion

How to 'aggregate' a stack of images (picture 1) in matlab as in attached picture 2

I tried to use loop as below for i = 1 : 10 imshow(df(:,:,i)) % Problem because df is the structure, not the 3-D array dff...

2 months ago | 2 answers | 0

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answersQuestion

how to solve 'ones error' in my code below

Error using ones Size inputs must be integers. Error in matlab.internal.builtinhelper.repmat (line 59) B = A(ones(siz,'...

2 months ago | 1 answer | 0

### 1

answerQuestion

Any suggestions to calculate the threshold of pixel intensity between two regions(the dip represents low intensity)

%this code calculates the center of mass/gavity bewteen the pharyngeal wall and tongue root imshow(matrix(:,:,1)) ...

2 months ago | 0 answers | 0

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answersQuestion

Any suggestions to calculate the threshold of pixel intensity (the dip represents low intensity)

imshow(matrix(:,:,1)) [x ,y]= ginput(2); I = matrix(:,:,1); for i=1:size(matrix,3) I=matrix(:,:,i); test = impr...

2 months ago | 1 answer | 0

### 1

answerQuestion

Any suggestions to measure the distance between two lines or regions (the dip represents low intensity)

Here I plotted the centre of gravity between two regions, then I would like to measure the distance between these two line usi...

2 months ago | 0 answers | 0

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answersQuestion

how to fix this error 'interp2'

imshow(matrix(:,:,1)) %identify axes [x y] = ginput(2); % preallocate matrices cog = zeros(size(matrix,3),1); %cog % loo...

2 months ago | 1 answer | 0

### 1

answerQuestion

'improfile' is a missing function in octave, what other options could I use to make my loop works?

imshow(matrix(:,:,1)) %identify axes [x, y] = ginput(2); % preallocate matrices cog = zeros(size(matrix,3),1); % loop start...

2 months ago | 1 answer | 0

### 1

answerQuestion

what is the equivalent of 'improfile' in octave?

imshow(matrix(:,:,1)) %identify axes [x, y] = ginput(2); % preallocate matrices cog = zeros(size(matrix,3),1); % loop start...

2 months ago | 1 answer | 0

### 1

answerQuestion

fix a center of gravity loop

imshow(matrix(:,:,1)) %identify axes [x, y] = ginput(2); % preallocate matrices cog = zeros(size(matrix,3),1); % the lo...

2 months ago | 1 answer | 0