Draw FFT power spectrum

[lmbdx]

Hi,
I actually don't really know where I should post this question so please forgive me if it's in the wrong discussion section. Basically, I'm developing a CUDA program to calculate the FFT power spectrum of a series of images which are captured continuously and want to show the power spectrum in a window at the same time. I'm not what I could use to draw the power spectrum. I thought about OpenGL but I really only know how to draw in 3D rather than 2D. Or is there anything else that I could use? Thanks in advance for any help.