OpenGL ES 2.0 is much more useful for image processing tasks than ES 1.1. Although OES_framebuffer_object is not part of the ES 2.0 kernel, it is a common extension. This extension gives you the ability to visualize textures.
However, a warning: many OpenGL ES devices are equipped with PowerVR graphics hardware. Although it is a very low-power, relatively high-performance chip, the tile-based rendering architecture does not work so fast for image processing.
What you need to do will depend on the image processing algorithm that you are going to implement.
source share