Why do you need a CUDA account? You don't need one to install CUDA.
Oh, and since you're basically using this commercially you might also want to take a look at the license of the VGG model: https://gist.github.com/ksimonyan/3785162f95cd2d5fee77#file-...
My use would fit under the CC definition of non commercial since the neural net results are handed out for free.