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研究生:鍾宜庭
研究生(外文):Yi-Ting Chung
論文名稱:應用可逆四捨五入小波轉換理論於資訊隱藏之研究
論文名稱(外文):Steganography Based On Theorem Of Reversible Round-Off Discrete Wavelet Transform
指導教授:汪桓生
指導教授(外文):Huan-Sheng Wang
學位類別:碩士
校院名稱:國立高雄第一科技大學
系所名稱:電腦與通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:中文
論文頁數:56
中文關鍵詞:高強韌性藏於低頻RRODWT資訊隱藏
外文關鍵詞:Embedding in low-frequencyRRODWTSteganographyhigh robustness
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隨著網際網路與資訊科技的發達,電子圖片、信件、影片、聲音等多媒體以數位化形式快速在網路上流傳。網際網路的高普及提高了便利性,但也衍伸出許多非法的複製問題。其中以數位影像的智慧財產所有權被破壞尤為嚴重。資訊隱藏和技術驗證是防止有心者對數位影像故意破壞與認證的有效措施,數位浮水印即為其一重要技術。
頻域數位浮水印技術是目前較具強韌性的資訊隱藏方法,其中以離散餘弦轉換(Discrete Cosine Transform DCT)和離散小波轉換(Discrete Wavelete Transform DWT) 方式具最佳效能,本論文提出一新的基於DWT的浮水印資訊隱藏演算法方式,使用一維可逆式四捨五入小波轉換(RRODWT)進行浮水印的嵌入。其原理將浮水印與原圖像的整數小波轉換係數混和以達到資訊隱藏的效果。此方法不僅擁有高穿透性,且有別傳統將資訊隱藏於中頻區段方式,本論文將資訊藏於低頻。實驗結果得知,所提的新方法具有高強韌性,在多種攻擊下仍保有高辨識度。
With the development and progress of the internet and information technology, digital multimedia in digital form circulated on the Internet rapidly, such as digital image, email, video and voice. Widespread Internet make more convenient, but that also have lots of illegal copying issues. Include intellectual property rights of digital image are the most serious. Steganography and technical verification are effective measures for preventing somebody who want to attack digital image and security identifying certification ownership.
The frequency domain watermarking is the highest robustness steganography present and that especially including DCT and DWT. Based on DWT there is a new design proposed in this thesis. 1D- RRODWT imbed information of watermark. The steganography theory is mix wavelet coefficient of watermark and cover image. This new method not only has a high transparency but also not like traditional steganography of embed in middle-frequency. Steganography of this thesis is Embedding information in low-frequency. Experimental results show that new method still possess high robustness and high Unambiguousness when it was attacked.
中文摘要 i
ABSTRACT ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
第一章 緒論 01
1.1 研究背景 01
1.2 研究動機與目的 02
1.3 論文架構 03
第二章 簡介數位浮水印 04
2.1 數位浮水印是什麼 04
2.2 原理與應用 05
2.2.1 需求考量 06
2.3 技術評估與準則 07
2.3.1. 影像尖峰訊號對雜訊比值 07
2.3.2. 正規化相關匹配法 08
第三章 基於RRODWT之資訊隱藏 09
3.1 簡介 09
3.2 浮水印隱藏方法 11
3.2.1. 嵌入前的RRODWT 11
3.2.2. 相似型浮水印嵌入 15
3.2.3. 連續型浮水印嵌入 21
3.3 浮水印取出步驟 26
第四章 實驗結果與結論 28
4.1 實驗平台 28
4.2 實驗數據 29
4.3 攻擊種類 31
4.4 實驗結果分析 35
4.4.1 實驗一 35
4.4.2 實驗二 41
4.4.3 實驗三 43
4.5 結論 44
參考文獻 45
[1]Qian-Li Yang, Yan-Hong Cai, “A Digital Image Watermarking Algorithm Based on Discrete Wavelet Transform”, The IEEE Information Technology in Medicine and Education , Volume 2, pp.1102-1105, Aug. 2012.
[2]潘正祥,,張真誠,林詠章,挑戰影像處理[數位浮水印技術],麥格羅.希爾出版集團。
[3]Li Zhang, Xiao-Lin Tian, Shao-Wei XiaA, “A Scrambling Algorithm of Image Encryption Based on Rubik’s Cube Rotation and Logistic Sequence”, Multimedia and Signal Processing of 2011 International Conference, Volume 1, pp.312-315, May. 2011.
[4]Li Zhang, Peng Cai, Xiao-Lin Tian, Shao-Wei Xia, “A Novel Zero-watermarking Algorithm Based on DWT and Edge Detection”, Image and Signal Processing of 2011 4th International Congress, Volum 2, pp.1016-1020, Oct. 2011.
[5]Yuan Yuan, De-Cai Huang; Duan-Yang Liu, “An Integer Wavelet Based Multiple Logo-watermarking Scheme”, 2006 IMSCCS''06 First International Multi-Symposiums of Computer and Computational Sciences, Volume2, pp175-179,June 2006.
[6]Almohammad A, Ghinea G, “Stego image quality and the reliability of PSNR”, 2010 International Conference on Pattern Recognition, pp215-220, July 2010.
[7]Gupta M, Pande A, Singh Rao R., Tripathi, A.K, “Design Pattern Detection by normalized crosscorrelation”, Methods and Models in Computer Science of 2010 International Conference, pp.81-84,Dec. 2010.
[8]陳伯岳,林志龍,抵抗列印掃描攻擊之彩色影像浮水印隱藏技術,彰化師範大學,資訊工程學系,碩士論文,民國九十八年。
[9]Chin-Feng Tsai, Huan-Sheng Wang, and King-Chu Hung, “A high efficient
non-recursive DPWT for extracting the transformed coefficients of coarser
resolution levels”, The 2004 IEEE Asia-Pacific Conference on Circuits and
Systems, 2004, Proceedings,Vol.2, pp. 661-664, Dec. 2004.
[10]King-Chu Hung, Yu-Jung Huang, Fu-Chung Hsieh, and Jen-Chun Wang, “An
AOCA-based VLSI architecture for non-recursive 2D discrete periodized wavelet transform”, Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on Volume 1, Vol.1, pp. 273 - 276, Jul. 2002.
[11]陳俊璋,結合自動定位與小波-動態拓展法於海馬迴邊緣自動偵測,國立高雄第一科技大學,電腦與通訊工程研究所,碩士論文,民國一百年七月。
[12]Ingrid Daubechies, “Orthonormal Based of Compactly Supported Wavelet”,
Communications on Pure and Applied Mathematics, Vol.41, No.7, pp. 909-996, .
Oct. 1988.
[13]趙志豪,新型抗人工效應之非遞迴離散週期性小波轉換,國立高雄第一科技大學,電腦與通訊工程研究所,碩士論文,民國一百零二年一月。
[14]Ramanjaneyulu K, Rajarajeswari K, “Wavelet-based oblivious image watermarking scheme using genetic algorithm”, Image Processing IET, Volume 6 , Issue 4, pp.364-373, June. 2012.
[15]Stirmark
Available: http://mkdhmath.blogspot.tw/2012/11/stirmark20121113.html
Mar.,2014[date accessed]
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