I am trying to implement a realtime object recognition application (Augmented Reality) in android phone using PyramidFAST(detector) + Freak(Descriptor) + BruteForce/FLANN matcher. Is it possible for me to see the real-coding of the detector and the descriptor inside the OpenCVforAndroid 2.4.6.0 library project? Is there any way to modify the code available in the library Project?