1. A method, using a computer, for analyzing an imaging system or an image produced by the imaging system, wherein the imaging system is configured to sense a target on a background, and the target, background, and imaging system are associated with spatial information and spectral information, the method comprising the steps of: Determining, by the computer, two of the following three: (a) a spatial confidence level associated with the spatial information, (b) a spectral confidence level associated with the spectral information, and (c) a total confidence level associated with sensing the target on the background; and calculating, by the computer, one non-determined confidence level from the three confidence levels, responsive to the two determined confidence levels to analyze one of the imaging system or the image.