I am creating an app for android that is similar to Morfo.I have to locate the facial features(head,eyes,mouth). I have planned to use OPENGL ES library for this.Which version of OPENGL ES is better? Also i have googled out for locating the facial features but i could not find it.Is it possible to locate the facial features on the image using OPENGL ES.? Another question is how this is done by Morfo.? Any links or references to this are greatly appreciated.