Multiple Watermarks Embedding Simultaneously to Identify Image Status based on Fractional Fourier Transform

摘要：

A new method of multiple watermarks embedding simultaneously to identify image status based on once and twice discrete fractional Fourier transform (DFRT) is presented.Random series watermark, chirp watermark and annotation watermark are embedded simultaneously in fractional Fourier transform domain to identify digital tamper detection, scanning detection, duplicate detection.According to the extracting situation of three kinds of watermarks from an image and the twice DFRT amplitude spectrum, we can know whether the image is tampered, scanned or duplicated.It provides a convenient way to identify the status of the image and will be an all-sided and comprehensive anti-counterfeiting technology.

关键词： Random series watermark chirp watermark annotation watermark Fractional Fourier Transform

作者: Liu Li Tan Jichun

作者单位: College of Opto-electric,National University of Defense Technology,Changsha,China Electronics and Co College of Science,National University of Defense Technology,Changsha,China

会议类型: 国际会议

会议名称: 2011 2nd International Conference on Material and Manufacturing Technology(2011第二届材料与制造技术国际会议 ICMMT2011)

会议地点: 厦门

会议语种:英文

页码: 758-762

在线出版日期: 2011-07-08（万方平台首次上网日期，不代表论文的发表时间）