1. A method of forming a convolution kernel in an imaging system, the imaging system comprising a host computer and an imaging device that provides an image to the host computer, the method comprising the following steps: (a) sending an imaging parameter from the host computer to the imaging device; (b) selecting, by the imaging device, first convolution coefficients based on the imaging parameter from the host computer; (c) selecting, by the host computer, second convolution coefficients; (d) convolving the second convolution coefficients with the first convolution coefficients to form third convolution coefficients; and (e) convolving, by the imaging device, the third convolution coefficients with an image.