{"title":"On digital watermarks based on complete complementary codes","authors":"Y. Horii, T. Kojima","doi":"10.1109/IWSDA.2009.5346410","DOIUrl":null,"url":null,"abstract":"Digital watermarking technologies with spread spectrum (SS) sequences have been previously proposed. The sequences used in previous studies, however, do not necessarily have good correlation properties. It is known that complete complementary codes have ideal correlation properties and very effective for mobile communication systems like CDMA. In this paper, it is shown that correlation properties of sequences play very important roles in detecting the embedded secret information from the watermarked images. In addition, we propose a method to embed multiple secret data simultaneously into a single image.","PeriodicalId":120760,"journal":{"name":"2009 Fourth International Workshop on Signal Design and its Applications in Communications","volume":"156 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"16","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 Fourth International Workshop on Signal Design and its Applications in Communications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWSDA.2009.5346410","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 16
Abstract
Digital watermarking technologies with spread spectrum (SS) sequences have been previously proposed. The sequences used in previous studies, however, do not necessarily have good correlation properties. It is known that complete complementary codes have ideal correlation properties and very effective for mobile communication systems like CDMA. In this paper, it is shown that correlation properties of sequences play very important roles in detecting the embedded secret information from the watermarked images. In addition, we propose a method to embed multiple secret data simultaneously into a single image.
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