In this paper we propose fast real-time hardwares for morphological operators using the method of decomposing gray-scale values into binary. the designed hardware is generalized not to be affected by the maximum values of structuring elements. We also propose a method of designing parallel hardware using the unit morphological hardware to deal with situations of using various sizes of structuring elements. The VHDL simulation results of the unit morphological hardwares are identical to those of theorectical operators.