Reversible component transforms by the LU factorization. - Hisakazu Kikuchi; Junghyeun Hwang; Shogo Muramatsu; Jaeho Shin 003 (PCS, 2010)

An Optimum Design of Error Diffusion Filters Using the Blue Noise in All Graylevels. - Junghyeun Hwang; Hisakazu Kikuchi; Shogo Muramatsu; Jaeho Shin 003 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Color-tone similarity on digital images. - Hisakazu Kikuchi; Heikki Huttunen; Junghyeun Hwang; Masahiro Yukawa; Shogo Muramatsu; Jaeho Shin 003 (APSIPA, 2012)

Reversible Implementations of Irreversible Component Transforms and Their Comparisons in Image Compression. - Junghyeun Hwang; Hisakazu Kikuchi; Shogo Muramatsu; Kazuma Shinoda; Jaeho Shin 003 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2012)