I'm currently using OpenCV on an android based device which supports ARM NEON.The OpenCV version is 2.4.9. Functions such as cvCanny, cvDilate, cvResize, cvtColor are used, and I want to speed them up. What i want to know is that if these functions are already written in the form that can be accelerated by the NEON architecture. How can i know the origin code of these functions, and what other functions are accelareted by NEON? Is there any more suggestions on optimization? Thank you!