以互斥或運算子為基準之數位浮水印技術 = A Digital Water...
國立高雄大學電機工程學系碩士班

 

  • 以互斥或運算子為基準之數位浮水印技術 = A Digital Watermarking Scheme Based on Exclusive-OR Operator
  • 紀錄類型: 書目-語言資料,印刷品 : 單行本
    並列題名: A Digital Watermarking Scheme Based on Exclusive-OR Operator
    作者: 陳信慈,
    其他團體作者: 國立高雄大學
    出版地: [高雄市]
    出版者: 撰者;
    出版年: 2012[民101]
    面頁冊數: 58面圖,表格 : 30公分;
    標題: 數位浮水印
    標題: Digital watermarking
    電子資源: http://handle.ncl.edu.tw/11296/ndltd/57625989505066773936
    附註: 104年10月31日公開
    附註: 參考書目:面48-51
    摘要註: 隨著電腦與網際網路技術的蓬勃發展及便利性,使資料趨向數位化管理並能輕易地散播於網路之中;因此,數位資料的智慧財產權保護便成為一個重要的問題。數位浮水印技術便是其中一種常見的數位資料版權保護方法。本論文提出一個結合區域像素二值化概念與互斥或運算子特性之空間域浮水印技術。本方法可使原始掩護影像嵌入浮水印後仍保有不錯的品質,並藉由嵌入過程產生之金鑰提升浮水印的擷取正確率。實驗結果證實,我們的方法相較於其他空間域嵌入法有著明顯改良的抗攻擊能力,並且保有空間域嵌入法的高隱蔽性以及低運算複雜度的特點。本研究方法屬於不需原始掩護影像或浮水印資訊協助擷取浮水印之盲式演算法,故擁有較佳的實用性。 With the rapid development of personal computer and Internet, digital properties are readily reproduced and distributed with ease. Therefore, intellectual property right protection of digital data becomes an important issue. Digital watermarking is a common method for protecting copyright of digital data. In this paper, we proposed a spatial domain watermarking technique that combines the concept of regional pixel binarization and the properties of exclusive-OR operator, and we constructed the secret keys to enhance the correct ratio of extracting. Experimental results show that the proposed approach maintains high imperceptibility and low computational complexity, and has better robustness than other spatial domain methods. Theproposed approach doesn't need information of both cover image and watermark inextraction process, so it has better practicability.
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