Interface from OpenGL to OpenCV

Hi, everyone.
I wanted to process a image by OpenCV. It’s generated by OpenGL. Firstly, I saved this image in my hard disk and read it with OpenCv, but I found it inefficient.
So I want to find an interface from OpenGL to OpenCV so that I don’t need to save the image to my hard disk.

Thanks everyone!

No body to answer me? :frowning:

It’s me again.Is there anyone else?