"Does anyone know of a method  that will return  the color  value of
either an Image, or Graphics at a given x,y coordinate?"

...you can use the getColor() method on a Graphics object... if you
are looking to find the individual color of a point, you can check
out the classes/methods of java.awt.color, but i believe you are
going to have to code  it; try copying a small area of the display to
an object then call getColor() on the pixel object you copied, if
that is unsatisfactory run it(the object) through a switch filter
(the better the filter the more precise the color match)...