置亂 的英文怎麼說

中文拼音 [zhìluàn]
置亂 英文
scramble
  • 置 : 動詞1. （擱; 放） place; put; lay 2. （設立; 布置） set up; establish; arrange; fix up 3. （購置） buy; purchase
  1. This arithmetic divides the wavelet coefficients of carrier image into 27 - classes by the background luminance, the texture and the edge mask character of visual system ; then after encrypting watermark image with magic cube transformation, the ycbcr model is employed, it embeds the watermark sequences in the carrier image with different intensity according to the coefficients " classes of carrier image in y channel

    首先，將載體rgb圖像轉換到ycbcr顏色空間，然後提取亮度通道y ，將其進行小波變換，然後利用人眼視覺模型對載體圖象分解后的小波系數進行分類。其次，對有意義的水印圖像分別進行3次不同的魔方置亂，得到3個隨機水印序列。
  2. Moreover, in order to raise the watermark ' s security and keep resilience to cropping attack, we used the magic square shuffling techniques in watermark image before embed the mark

    此外，為了提高水印的安全性和對剪切的抵抗性，在嵌入水印前，還先對水印進行了幻方置亂預處理。
  3. The application of prime number to image scrambling

    基於素數的圖像置亂技術
  4. Digital image scrambling based on the baker ' s transformation

    基於麵包師變換的數字圖像置亂
  5. A novel digital image scrambling method based on the function transform

    一種基於函數變換的數字圖象置亂新方法
  6. Researches the basis watermark managing works particularly and systemly. there are many works to do on watermak technology except watermark embedding and extraction arithmetics such as the watermark choosing, encoding, modulating, demodulating and the watermark capacity. these prior and ultimate works ensure that the arithmetic is brought into effect. just understanding these, this paper analyses and researches the basic watermark theoretics in many pages. it brings forward chaos modulation on watermark modulating, brings forward chaos permuting on image permuting, introduces bch encoding on letter watermark processing and discusses the approximate estimate of the watermark capacity in dct domain and dwt domain by applying the current communication theoretics. there works not only extend ways for the later work but also are significative on watermark research

    全面系統地研究了水印信號的處理技術數字水印技術除了水印嵌入和提取的演算法外，還有許多工作需要做，如水印的選碼、編碼、調制、解調、能量的確定等等，這些預處理和后處理工作是演算法有效實施的必要保證，正是基於這樣的認識，本文利用較大的篇幅對水印的基本理論知識進行了詳細的分析和研究，在水印的調制方面，提出了混沌調製法；在圖像水印的置亂方面，提出了混沌置亂法；在文字水印的處理上，引入了bch編碼；在水印容量分析方面，結合現代通信理論，對圖像在dct域和小波域內的水印容量估算進行了詳細的探討，這些工作不僅為本文後期工作鋪平了道路，而且對數字水印的研究具有重要的意義。
  7. Matching matrixes were structured with wavelet zerotree structure, and used to load multiple binary watermarks scrambled by chaotic sequences

    該演算法利用小波零樹結構構造匹配矩陣，然後用其加載已由混沌空域置亂的多重二值圖像水印。
  8. We extend the baker transform to k - th system, give the digital image scrambling algorithm based on it and test the algorithm robust ( for example, key space, two adjacent pixels correlation and tolerance of image processing )

    特別是，本文對基於麵包師變換的數字圖像置亂演算法的魯棒性進行了分析（如密鑰空間、相鄰像素的相關性、抗圖像處理等） 。
  9. Subsequently we analyze the isomorphism relationship between ergodic matrices and the corresponding permutation group. by defining the permutation symbol operation system of ergodic matrices, we constructed a union form to express all existed permutation algorithms

    通過在理論上分析遍歷矩陣和置換群的同構關系，定義了遍歷矩陣對應的置換運算和符號體系，再統一的框架下表達各種圖像置亂變換。
  10. An improved adaptive image watermarking algorithm based on block dct and arnold shuffling is proposed : with shuffling techniques in image watermarking, you can not only prevent illegal users from riddling the content of the images, but also disperse the distributing of error bits in order to enhance the robustness of watermarking

    提出了一種改進的基於分塊dct （ discreteconsinetransform ）變換和arnold變換的自適應圖像水印演算法:本文將信息置亂技術用於圖像水印中，一方面可以使非法使用者無法破譯圖像的內容，另一方面可以盡可能的分散錯誤比特的分佈，從而提高數字水印的魯棒性。
  11. The design of a class of modified chaotic picture scrambling networks

    一類改進型基於混沌的圖像置亂網路設計
  12. Finally, we proposed a novel improved self - adaptive algorithms and testified its combining encryption effect with its position and energy information. in part two of this thesis, we analyze the dynamic states of an image caused by image iteration, as a result we point out that the holographicity exists with chaotic characters simultaneously during image scrambling

    隨后，我們分析純位置移動演算法的弱點並作了改進，給出了一種新的自適應圖像置亂加密演算法，經過本演算法加密的圖像可以有效地防止已知明文的攻擊，並具有很好的完整性保護功能，亦可用於圖像驗證。
  13. Firstly, by analyzing former researches and visible watermark characteristics, a visible watermarking algorithm with feature of holding image content is realized. secondly, using redundant embedding technique to embed watermark and extracting watermark according to watermark content, a meaningful invisible watermarking scheme is proposed ; thirdly, combining with vision characteristics a resilient - prone scrambling algorithm and a restoring scheme of scrambled image with data loss are proposed, image scrambling technique of irregular region is discussed. based on the proposed algorithms, a digital watermarking system scheme is designed

    通過分析前人的研究進展，結合可見水印特性，在小波域實現了一種具有圖像內容保持特性的可見水印演算法;利用水印冗餘嵌入技術進行水印嵌入，根據水印遭破壞的情況進行水印提取，給出一種有意義水印的嵌入和提取方案;結合視覺冗餘特性提出並實現了一種易於恢復的圖像置亂演算法和一種受損置亂圖像的恢復方案;探討了不規則區域的圖像置亂方法，在此基礎上，設計了一種置亂演算法在數字水印演算法中的應用框架;最後整合本文所提出的演算法，實現了一個基於視覺特性的圖像水印系統。
  14. To solve the problem of watermark encryption, a novel permutation operator is proposed, based on which the permutation scheme and the substitution scheme for watermark encryption are designed ; encryption algorithms in spatial domain and transform domain are proposed. the ciphered image can be jpeg compressed before it is transmitted, and low - distortion plain image can be obtained after decrypting the compressed encryption image

    為解決水印信息加密問題，我們在第三章提出混沌有序化運算元方法，設計了水印信息加密的置亂模塊和替代模塊;還給出了空間域和變換域數字圖像加密演算法，密文圖像可以經過有損壓縮再傳輸，經過解密得到低失真的明文圖像。
  15. By designing an algorithm and analyzing experiment results, a novel method based on digital watermarking, which is put for - ward in this paper, has the following characteristic to the anti counterfeit of commercial bills : ( 1 ) the method is very easy to realize. ( 2 ) it can resist scanning and typing. ( 3 ) both scramble encryption and watermark technology have improved the security of the algo - rithm

    通過演算法設計和模擬實驗分析，本文提出的數字水印演算法對票據防偽具有以下特點: （ 1 ）演算法簡單易實現（ 2 ）能夠抵抗票據的列印掃描（ 3 ）置亂加密和水印兩種技術的結合，提高了演算法的安全性。
  16. We make a study of the application of shuffling techniques within watermarking and present criterion measure on shuffling degree. the criterion measure can help me to decide how to shuffle an image in order to obtain the best robustness

    我們對置亂技術在數字水印中的應用進行了研究並提出了置亂程度的標準測度，這個標準測度能夠幫助我們判斷為了達到最好的水印魯棒性對一幅圖象應該置亂到什麼程度。
  17. The scramble times of original image is optional, after the scramble process, the watermark image is scattered into the whole spatial space of original image ; it enlarged the difficulty of extraction and inspection, and enhanced the anti - attack and security

    原始圖像置亂的次數是可調的參數，通過置亂過程，使水印均勻分散到原始圖像的整個空間里，這樣加大了水印提取和檢測的難度，增強了水印的抗攻擊性，魯棒性和保密性。
  18. A direct signal is founded in host image in dct domain, and the modulated watermark is regarded as alternating signal, so watermark embedding and extracting are similar with direct and alternating signal synthesizing and separating

    在載體dct域的中頻系數中建立近似直流信號，把水印圖像置亂並調製成交流信號，水印的嵌入和檢測過程轉化為直流和交流信號的合成和分離過程。
  19. The watermarking scheme based on wavelet decomposition and discrete cosine transform using a binary pattern or gray - level pattern as the watermark, the scheme initially performs wavelet decomposition of the host image and the watermark with different hierarchy. after the pseudo - random permutation, each decomposed layer of the watermark is embedded into the dct domain of corresponding decomposed layer of the host image

    基於小波分解和餘弦變換結合的水印方案演算法以二值圖標或灰度圖標作為水印，將原圖像和水印信號分別進行不同層次的小波分解，分解后的水印各分量偽隨機置亂後分別嵌入到原圖像相應分解層各分量的dct域中。
  20. Accelerated implementation of the h. 264 motion estimation algorithm on the imagine stream processor

    序列整數調制和置亂的圖像加密演算法
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