open nii images with matlab R2017a?

I use Matlab R2017a but i cannot open nii images with niftiread command...

Do i miss something??How can i open them??

Answer 1

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/8797-tools-for-nifti-and-analyze-image

[DIMITRIOS THEODOROPOULOS]

I cannot find the installation instructions ,so could you just briefly say which file must i open to read the nii??

[Walter Roberson]

On that page, click on the Download button. That will download a .zip file. Unzip the file into a convenient directory that is not under the MATLAB installation directory. Now, in MATLAB, use pathtool to add that folder to the MATLAB path. Remember to save afterwards.

The particular one you need is load_nii

[DIMITRIOS THEODOROPOULOS]

I followed the instructions but i get the error when i run it..

[Walter Roberson]

It isn't a GUI tool. You need to pass the name of the nii file at the very least.

[DIMITRIOS THEODOROPOULOS]

Ι am struggling to find where must i pass the nii file...I cannot... :(

and i cannot find any further details....Could you help me more??

[Walter Roberson]

result = load_nii(Filename_goes_here);

[DIMITRIOS THEODOROPOULOS]

i feel very stupid....i am sorry ..tit doesnt work either..

where is my mistake??

[Walter Roberson]

remove that added line from that file. Then in a different file

result = load_nii('1103_3_glm');

[DIMITRIOS THEODOROPOULOS]

it has no errors but no image appears..This same image opens in mango...

Anyway thanks for your support

[Walter Roberson]

load_nii just loads the data: it does not display the data.

After you have loaded the data, examine size(result) and class(result) and tell us what shows up.

[DIMITRIOS THEODOROPOULOS]

[Walter Roberson]

now examine result.img

[DIMITRIOS THEODOROPOULOS]

ok,this gives me a big matrix..

[Walter Roberson]

What size of matrix does it give?

[DIMITRIOS THEODOROPOULOS]

[Walter Roberson]

Use volumeViewer to examine the data.

[DIMITRIOS THEODOROPOULOS]

i want to see the image..What is the command??

[Walter Roberson]

volumeViewer( result.img );

provided you have a new enough MATLAB.

If not then look in the File Exchange for "vol3d v2"

[DIMITRIOS THEODOROPOULOS]

Thank you very much!!this worked..That is what i really wanted to see!