how to obtain .hdr files from .mat

Hello,

I am following this tutorial https://www.mathworks.com/help/images/end-member-material-identification-using-spectral-library.html

and in the tutorial, jasperRidge2_R198.hdr file used, I have looked for this file in the specific format and I can only find jasperRidge2_R198.mat.

how do I obtain jasperRidge2_R198.hdr file?

Do I need to convert jasperRidge2_R198.mat to jasperRidge2_R198.hdr ? If yes, how can I do it?

Thank You

[dpb]

Maybe they saved the result of creating the hypercube object from the header file as a .mat file -- see what you get if you just load it. If you're lucky you can then just carry on from there.

You can always just use

whos -file jasperRidge2_R198.mat

to see what's inside it first...

[Mohammed Younus]

Thank you

Answer 1

[Harsha]

There is no need to convert ‘.mat’ file to ‘.hdr’.

Download “hyperspectral image library” from the Add-ons menu present in the environment section of the home tab.

No need to find the ‘jasperRidge2_R198.hdr’ file, just mention name in the function as shown in the example document, it should work without issues as the library location is already added to the path.

If needed ‘jasperRidge2_R198.hdr’ file can be found in the following location.

C:\ProgramData\MATLAB\SupportPackages\R2022a<your version name here>\toolbox\images\supportpackages\hyperspectral\hyperdata

The following screenshots can be used for reference

[Mohammed Younus]

Thank you