教師資料查詢 | 類別: 期刊論文 | 教師: 顏淑惠 Yen Shwu-huey (瀏覽個人網頁)

標題:SVM Based Watermarking Technique
學年94
學期2
出版(發表)日期2006/06/01
作品名稱SVM Based Watermarking Technique
作品名稱(其他語言)一種以SVM為基礎的浮水印技術
著者顏淑惠; Yen, Shwu-huey, Wang, Chia-jen
單位淡江大學資訊工程學系
出版者臺北縣淡江大學
著錄名稱、卷期、頁數淡江理工學刊=Tamkang journal of science and engineering 9(2), pp.141-150
摘要This paper presents a digital watermarking technique based on Support Vector Machines (SVMs). Use the nice characteristic of the SVM, which can result an optimal hyperplane for the given training samples, the imperceptibility and robustness requirements of watermarks are fulfilled and optimized. In the proposed scheme, to improve imperceptibility, the watermark is embedded by asymmetrically tuning blue channels of the central and surrounding pixels at the same time. Furthermore, to promote robustness, the embedded watermark bits will be re-modified if necessary according to classifying result of the trained SVM. Our scheme uses only 128 bits in training SVM, thus it is time efficient. Watermarks are embedded in spatial domain and extracted directly from a watermarked image without the requirement of original image. Experiments show that the proposed scheme provides high PSNR of a watermarked images and low extraction error rate.
關鍵字
語言英文
ISSN1560-6686
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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