title: Faster method to rotate an image in Python or Java
body: <p>I have a quick question if someone of you can help me with this kind of information :).
  What is the <strong>faster method</strong> to rotate an image with <strong>90 degree(or multiples of 90 degree)</strong> if we speak about the execution speed and memory management.
  I've search a lot with Google and I've found the faster method to do this is <strong>OpenCV</strong> in both languages <strong>Python</strong> or <strong>Java</strong>(and anothors languages). 
  It's true? Do you know and other method to rotate an image faster then 90 degree?
  Thanks a lot for </p>