1. A method for analyzing images, said method comprising the steps of: A. Acquiring a digital image of an observation, said digital image being observation data; B. Vectorizing said observation data to generate an observation vector x(i); C. Determining a de-mixing matrix W; D. Determining an output vector y(i)&equals;Wx(i); E. Recovering a source vector S(i), where S(i)&equals;y(i); and F. Utilizing said source vector S(i) to analyze said image.