Suppose that a flat area with center at(x0.y0) is illuminated by a light source with intensity distribution i(x.y) = Ke Assume for simplicity that the reflectance of the area is constant and equal to 1.0, and let K= 255. If the resulting image is digitized with k bits of intensity resolution, and the eye can detect an abrupt change of eight shades of intensity between adjacent pixels, what value of k will www cause visible false contouring?