The light scattering microscopy is proposed, which reconstructs the height
distribution function of a random surface from the speckle intensity of the
scattered light wave. In the computational simulation, we generated the ra
ndom surfaces of Gaussian correlation and the speckle intensities, and reco
nstructed the surfaces by Gerchberg-Saxton (G-S) and modified G-S algorithm
. The simulation proves this microscopy works well.