A FAST IMPLEMENTATION ALGORITHM AND A BIT-SERIAL REALIZATION METHOD FOR GRAYSCALE MORPHOLOGICAL OPENING AND CLOSING

This paper presents a fast real-time software implementation method fo r the grayscale morphological function processing (FP) opening and clo sing. The proposed method utilizes a basis matrix composed of structur ing elements. It is shown that opening and closing can be accomplished by a local matrix operation in real time rather than the cascade oper ation (erosion/dilation followed by dilation/erosion), which requires large amount of delays and memory storage for the intermediate erosion /dilation outputs. In the second part of this correspondence, a bit-se rial implementation architecture for the grayscale morphological FP op erators is presented. The proposed implementation architecture employs a bit-serial approach that allows grayscale morphological FP operator s is presented. The proposed implementation architecture employs a bit -serial approach that allows grayscale morphological operations to be decomposed into bit-level binary operation units for the p-b grayscale signal. It is shown that this realization is simple and modular in st ructure and thus is suitable for VLSI implementations.