1. College of Information Science and Engineering, Shandong Normal University School, Jinan Shandong 250014,China 2. Research Institute of Data Processing Oumasoft, Jinan Shandong 250100,China
CHEN Xia WANG Xi-chang ZHANG Hua-ying LIU Jiang. Zero watermark algorithm for binary document images based on texture spectrum[J]. Journal of Computer Applications, 2011, 31(09): 2378-2381.