A Secure Data Hiding Scheme for Two-Color Images. - Hsiang-Kuang Pan; Yu-Yuan Chen; Yu-Chee Tseng (ISCC, 2000)

Secure and Invisible Data Hiding in 2-Color Images. - Yu-Chee Tseng; Hsiang-Kuang Pan (INFOCOM, 2001)

Data Hiding in 2-Color Images. - Yu-Chee Tseng; Hsiang-Kuang Pan (IEEE Trans. Computers, 2002)

A secure data hiding scheme for binary images. - Yu-Chee Tseng; Yu-Yuan Chen; Hsiang-Kuang Pan (IEEE Trans. Commun., 2002)