{"title":"基于四元数傅立叶变换的彩色图像灰度水印新算法","authors":"Wei-jiang Wang, W. Zuo, Xue-mei Yan","doi":"10.1109/IWACI.2010.5585206","DOIUrl":null,"url":null,"abstract":"A scheme of embedding gray-scale watermark image into an RGB carrier image based on the fast Quaternion Fourier Transform (QFT) is proposed. In this algorithm, the R, G, B color components are represented respectively by the three imaginary parts of a pure imaginary quaternion. Then the gray-scale watermark image is inserted into the real part of the carrier image which is transformed by the 2D-QFT. According to the special symmetrical characteristic of the real part, the insertion of the gray-scale watermark image without lose is realized. Experiments show that the watermark inserted in the scheme has the biggest imperceptibility with the best PSNR when compared with other gray-scale watermarking schemes.","PeriodicalId":189187,"journal":{"name":"Third International Workshop on Advanced Computational Intelligence","volume":"14 2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"New gray-scale watermarking algorithm of color images based on Quaternion Fourier Transform\",\"authors\":\"Wei-jiang Wang, W. Zuo, Xue-mei Yan\",\"doi\":\"10.1109/IWACI.2010.5585206\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A scheme of embedding gray-scale watermark image into an RGB carrier image based on the fast Quaternion Fourier Transform (QFT) is proposed. In this algorithm, the R, G, B color components are represented respectively by the three imaginary parts of a pure imaginary quaternion. Then the gray-scale watermark image is inserted into the real part of the carrier image which is transformed by the 2D-QFT. According to the special symmetrical characteristic of the real part, the insertion of the gray-scale watermark image without lose is realized. Experiments show that the watermark inserted in the scheme has the biggest imperceptibility with the best PSNR when compared with other gray-scale watermarking schemes.\",\"PeriodicalId\":189187,\"journal\":{\"name\":\"Third International Workshop on Advanced Computational Intelligence\",\"volume\":\"14 2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-09-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Third International Workshop on Advanced Computational Intelligence\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IWACI.2010.5585206\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Third International Workshop on Advanced Computational Intelligence","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IWACI.2010.5585206","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
New gray-scale watermarking algorithm of color images based on Quaternion Fourier Transform
A scheme of embedding gray-scale watermark image into an RGB carrier image based on the fast Quaternion Fourier Transform (QFT) is proposed. In this algorithm, the R, G, B color components are represented respectively by the three imaginary parts of a pure imaginary quaternion. Then the gray-scale watermark image is inserted into the real part of the carrier image which is transformed by the 2D-QFT. According to the special symmetrical characteristic of the real part, the insertion of the gray-scale watermark image without lose is realized. Experiments show that the watermark inserted in the scheme has the biggest imperceptibility with the best PSNR when compared with other gray-scale watermarking schemes.