Semi-fragile Watermarking for Tamper Proofing and Authentication of Still Images. - Sang-Jin Han; In Su Chang; Rae-Hong Park (IWDW, 2003)

Semi-fragile Tamper Detection using the Discrete Cosine Transform. - Sang-Jin Han; Jong-Hyuk Moon; In Su Chang; Rae-Hong Park (SIP, 2003)