Please help me ..
i want to make feature extraction using PCA ,using matlab code on galaxy image like that >>
I was wondering if anyone could help me with a few steps or even code to make feature extraction from images .
I would like to extract the features of galaxy images and then classify them in the classification learner app.
The data I have is a set of galaxy imagse.
The aim is to extract the features and then compare them in the classification app with each other.
Any help is appreciated!
i want to know how pca work ? does it work in gray images only ??