title: Resize an image with OpenGL ES 2.0
body: <p>My problem is simple: I have to process each frame of a video. The process computes a zone to crop on the original frame. To have better performances, I have to downscale the original frame. Nowadays, It is done thanks to a dedicated library. However, it is slow. We are wondering if there is any possibility to downscale this frame thanks to OpenGL ES 2.0 glsl.</p>
  
  <p>David </p>