Itseez/opencv — pull request #17 by pickle27 (2012-08-23 03:36:14+00:00)
Title: Feature#2287

Overloaded PCA constructor and ( ) operator to implement Feature#2287 - PCA that retains a specified amount of variance from the data. A sample was added to samples/cpp to demonstrate the new functionality. Docs and Tests were also updated.

The new functionality is not in the python wrapper, I would do this but I do not know how.