face alignment algorithm on images

Question

How can I do a basic face alignment on a 2-dimensional image with the assumption that I have the position/coordinates of the mouth and eyes.

Is there any algorithm that

Answer 1

There's a section Aligning Face Images in OpenCV's Face Recognition guide:

• http://docs.opencv.org/trunk/modules/contrib/doc/facerec/facerec_tutorial.html#aligning-face-images

The script aligns given images at the eyes. It's written in Python, but should be easy to translate to other languages. I know of a C# implementation by Sorin Miron:

• http://code.google.com/p/stereo-face-recognition/