  A new technique for contrast separation in wide-field magneto-optical Kerr
microscopy is introduced. Utilizing the light from eight light emitting diodes,
guided to the microscope by glass fibers and being switched synchronously with
the camera exposure, domain images with orthogonal in-plane sensitivity can be
displayed simultaneously at real-time and images with pure in-plane or polar
contrast can be obtained. The benefit of this new method of contrast separation
is demonstrated for permalloy films, a NdFeB sinter magnet, and a cobalt
crystal. Moreover, the new technique is shown to strongly enhance the
sensitivity of Kerr microscopy by eliminating parasitic contrast contributions
occurring in conventional setups. A doubling of the in-plane domain contrast
and a sensitivity to Kerr rotations as low as 0.6~mdeg is demonstrated
