1. An image scanner for unstained live cells comprising: (a) an inverted microscope able to enhance scattered light rather than optical density with autofocus; (b) a precision computer controlled motor driven stage to provide X,Y plane displacements in order to position and scan cells under the microscope; (c) a solid state image sensor that comprises a linear charged coupled device array of photosensitive elements; (d) a digitizer in association with the microscope to sense a horizontal image line and provide a digital representation of the line; (e) a digital signal processor to process in real time digitized signals from the sensor; and (f) a computer to control the mechanical and electronic scanning and to store and display information from the digital signal processor.