高藏量可回復式資訊隱藏之研究 劉姿攸、陳文儉
E-mail: [email protected]
摘 要
近年來資訊隱藏技術在資訊科技中是一個重要的議題，也被廣泛的運用在在醫療用途、軍事地緣戰略、資料安全、數位指 紋或影像編碼等等。可回復式資訊隱藏技術，從偽裝影像中取出秘密資訊後，可以完整的重建原始影像。過去有許多研究 者提出高藏量並且有良好品質的資訊隱藏技術。 本論文提出一個高藏量可回復式的資訊隱藏方法，藉由判斷每個像素值來 藏入秘密資訊。實驗結果顯示，本文所提出的方法可以有高藏量且可維持良好的影像品質。
關鍵詞 : 資訊隱藏、可回復式、高藏量資訊隱藏
目錄
封面內頁 簽名頁 中文摘要...iii ABSTRACT...iv 誌謝...v 目
錄...vi 圖目錄...viii 表目錄...x 第一章 緒論...1 1.1 前言...1 1.2 論文架構...2 第二章 相關研究...3 2.1 Kieu方法...3 2.1.1 藏入秘密資訊之步驟...4 2.1.2 取出秘密資訊之步驟...6 2.2 Kieu方法實例說明...8 2.2.1 Kieu 方法藏入秘密資訊...8 2.2.2 Kieu方法取出秘密資訊...12 2.3 Jia方法...15 2.3.1 Jia方法藏入秘密 資訊之步驟...16 2.3.2 Jia方法取出秘密資訊之步驟...18 2.4.1 Jia方法藏入秘密資訊...20 2.4.2 Jia方法取出秘 密資訊...23 第三章 本文方法...26 3.1 秘密資訊隱藏之方法...26 3.2 秘密資訊取出之方 法...27 3.3 實例說明...29 3.3.1 本文方法藏入秘密資訊...29 3.3.2 本文方法取出秘密資 訊...32 第四章 實驗結果與分析...35 第五章 結論...52 參考文獻...53 參考文獻
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