Eigenvectors and eigenvalues in OpenCV

There are many libraries for C++ that can be used to compute Eigenvectors and Eigenvalues. However, if you are already using OpenCV in your project, then it can be used to get these values easily by using the PCA class. This class is declared in opencv2/core/core.hpp header file and defined in the modules/core/src/matmul.cpp source file.

Here is an example:

Tried with: OpenCV 2.4.9 and Ubuntu 14.04

One thought on “Eigenvectors and eigenvalues in OpenCV”

  1. I don’t want Eigen values to be in highest to lowest order because I want to know which concrete features are less significant, do you know how to find that? Thanks!

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