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| 研究生： |
詹皓棠 Hao-Tang,Chan |
|---|---|
| 論文名稱： |
適用於數位全息圖認證之可逆式浮水印嵌入法則開發與分析 A Reversilbe Fragile Watermarking Algorithm for Holograms |
| 指導教授： |
黃文吉
Hwang, Wen-Jyi |
| 學位類別： |
碩士 Master |
| 系所名稱： |
資訊工程學系 Department of Computer Science and Information Engineering |
| 論文出版年： | 2014 |
| 畢業學年度： | 102 |
| 語文別： | 中文 |
| 論文頁數： | 54 |
| 中文關鍵詞： | 全息圖 、Hadamard轉換 、可逆式 、高PSNR 、嵌入數量大 |
| 論文種類： | 學術論文 |
| 相關次數： | 點閱：112 下載：14 |
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本論文的目的是提出一個新法則來改善浮水印嵌入的效果，新的法則是以Hadamard轉換為基礎進行還原的。在本文中會用數據以及公式來表現出新的法則不但可以讓Hologram還原成原始狀態，在PSNR值與嵌入的資訊數量上有良好的表現，足以取代先前所提出的浮水印嵌入法則。上述的優點正足以表示本論文所使用的法則則擁有相當好的隱蔽性、可逆性與靈敏性，這三個優點對於Hologram是來講是相當重要的。Hologram是一個很講求精準還原的技術，尤其是如果還原上有偏差的情形產生時，會導致後續的研究很難取得正確的結果，所以本論文的法則是必要，可以使用本論文的法則來將浮水印嵌入，一方面保證獲得的結果是正確的，一方面也保證浮水印截取之後可以還原，完全足以適用在Hologram的相關技術上。
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