Hi,

OpenCV (http://opencv.org/) is a well known library for computer vision that offers a rich set of tools and methods for image and video processing. The GPU module of the library (http://docs.opencv.org/modules/gpu/doc/introduction.html) inlcudes a set of classes and functions for utilizing GPU (CUDA) computational capabilities when performing a number of different operations.

I am pretty sure that simple procedures such as loading an image and performing a set of filterings or transformations on it can be done using the GPU module of the library. So, I think it's worth to give it a try.

Best