The invention relates to the color correction of images. The nitric oxide adduct can be present in a matrix coating on a surface of the medical device; can be coated per se on a surface of the medical device; can be directly or indirectly bound to reactive sites on a surface of the medical device; or at least a portion of the medical device can be formed of a material, such as a polymer, which includes the nitric oxide adduct. Through the factor analysis, a decision maker can decide the optimal combination of different factor improvements for achieving the planned target total value. The address sending module is configured for sending the physical location of the CPE over the Internet.