Borrar filtros
Borrar filtros

Principal Component Analysis for feature extraction

11 visualizaciones (últimos 30 días)
farheen asdf
farheen asdf el 3 de Jun. de 2016
Comentada: Aya Ahmed el 4 de Abr. de 2020
Hi. I'm learning about PCA and wanted to learn how it can be used for feature extraction and if it is feasible to extract features using PCA? Also I don't understand when exactly is PCA used in image processing. From what I understand it is used to reduce the size of a dataset and then features are extracted from that dataset using some other methods such as GLCM. Am I correct?

Respuestas (1)

deepak panday
deepak panday el 10 de En. de 2018
[coff,score]=pca(data) newData = data*coff(:,1:n)
where n is number of feature to selected.
  2 comentarios
Aya Ahmed
Aya Ahmed el 29 de Mzo. de 2020
this line code only for PCA feature extraction?
Aya Ahmed
Aya Ahmed el 29 de Mzo. de 2020
how can i apply this code on real images??

Iniciar sesión para comentar.

Categorías

Más información sobre Dimensionality Reduction and Feature Extraction en Help Center y File Exchange.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by