original image 中文意思是什麼
original image
解釋
原（始）象-
The watermark is embedded in the lpm of fourier magnitude spectrum of the original image, and a small portion of resulting lpm spectrum is used to calculate the watermark positions
在文章中，首先對原始圖像進行傅里葉變換，然後再將數字水印嵌入在該傅里葉變換的幅度頻譜的對數極坐標域。 -
This kind of two - channels wavelets decomposition methed reconstruct the wavelet coefficients of an image from the radon transform data, and these coefficients were made reverted wavelet transform obtain the original image. wavelets subsampled on the quincunx lattice, which can have cut - off at an angle during the wavelets decomposition
基於不可分離mra的小波演算法將投影數據進行二維濾波，其二通道的小波分解直接得到小波的近似系數和細節系數，這些系數再經過逆小波變換就得到了最終的重建圖像。 -
Conclusion r1 represent pixel - value of original image range block, r represent mean - value of original image range block, d represent mean - value of original image domain block, d1 represent pixel - value of resumptive image domain block, d represent mean - value of resumptive image domain block. superior perfermance of resumptive image range block is obtained as compared to conventional creative function by one iteration, that is,
） ， d _ i （ i = 1 ， 2 ， … ， n ）分別為某一恢復圖像定義域塊的均值和每一像素的像素值，我們用傳統的和改進的生成函數分別進行一次迭代，則用改進的生成函數進行迭代的恢復圖像每一值域塊的效果較好，即： -
In total, the main work and creativity in this treatise can be summed up four points : 1 ) after analyzing the traditional means to recognize the car plate with texture, we propound the conception of dubious region and extract the dubious regions from original image to process in later steps
對傳統的紋理定位方法進行了分析，在此基礎上提出了懷疑區域的概念，從圖像中提取出若干可能的位置去進行下一步的處理，從而將原先一步到位的過程轉變為一個由粗及細的分析過程，降低了早期的誤判率： 2 -
The original image is not nee ded in watermark detection process
檢測過程不需要原始圖像。 -
It is difficult to recognize the character directly in original image because the original image has big dimensions, which need big memory, and at the same time, there are many disturbed areas in the image. however, if we can locate license plate and segment character precisely, thus the capacity of storage can be reduced and the disturbance can also be avoided, and so the character will be recognized accurately, which can ultimately improve the efficiency and precision of the recognition system
這是因為由攝像機得到的原始圖像尺寸較大，所需存儲空間較大，又有眾多的干擾區域存在，在圖像中直接對車牌字元進行識別是十分困難的，如能準確定位車牌區域和切分字元，可以減少存儲容量，避免干擾，進行準確的字元識別，從而提高整個識別系統的工作效率和識別精度。 -
In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size
本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。 -
With the integer wavelet transform to the original image we apply a general hid means in wavelet domain for all kinds of files especially for the executable files and text files. the result shows that we can get an invisible image
本文為可執行文件與文本文件及其他各種格式的文件提供了一種通用的小波域隱藏方式，採用整數小波變換對原始圖像進行處理，實驗結果表明，可以達到較好的不可見性。 -
In the skeleton extraction, an novel approach for extracting the skeletons directly from the gray images is developed by simulating the procedure of water eroding the topography surface. the resultant skeletons are single - pixel width and connected. it also lies in the middle line of the object and keeps the topological properties of the original image unchanged
在骨架提取方面，論文提出了一種通過模擬水流沖刷地形表面的過程來直接從灰度圖象中提取目標的骨架的高效演算法，它可以得到連通的、保持目標的拓撲屬性的、處在目標的中線上的、近似單象素寬度的骨架。 -
In chapter 2, a general digital watermarking frame is presented, including the generation, embedding and detection of watermark. in chapter 3, the concept of watermarking channel is presented, the modes of watermarking channel and image dct coefficients is proposed, the capacity of watermarking channel is evaluated by embedding watermarks to selected still image dct coefficients in direct spread spectrum. in chapter 4, a watermarking algorithms based wavelet multi - resolution is presented, by conjunction with human visual model, it keeps invisibility of watermark in host image and need not original image during detection
數字水印是一種新的數字媒體保護技術，它是將特定的信息（如版權信息、秘密消息等）嵌入到圖象、語音、視頻等各種數字媒體中，以達到版權保護等目的，同時，這種信息對宿主媒體的影響不足以引起人們的注意且有特定的恢復方法，此信息對非法接收者應該是不可見的，本文主要對數字水印的一般框架，靜止圖象dct系數的理論容量，圖象水印的嵌入和檢測，數字媒體防篡改以及數字水印的攻擊等問題進行了研究，提出了兩個新的水印算演算法。 -
And a direction field graph of the original image was also drawn
由鍥特徵得到方向場圖來描述整幅圖像。 -
The innovative idea of the method is in that the analytic ability for high - frequency signals of wavelet packet is used to enhance information capacity. because the human vision is insensitive to high - frequency signals, one can make information of watermark mass and hightensile in the high - frequency domain. in this way, not only the quality of original image can be reserved, but also the robustness of the watermark improved
其創新點就在於利用小波包對高頻信號進一步分解的能力，極大地拓展了信息嵌入的空間，由於人眼視覺對高頻信號的不敏感性，可以以較大的強度在高頻部分嵌入水印，這樣不但可以保證原圖質量，而且可以進?步提高水印的頑健性。 -
In semi - fragile image watermarking algorithm, a robust watermark and a fragile watermark are extracted from the third approximation coefficient of wavelet transform of the original image. the two watermarks are embedded into the third vertical and horizontal detail coefficients. when authenticating image, image can be authenticated correctly and attacked parts can be localized through comparing the original watermarks and extracted watermarks
其中，完全認證方法，利用qr分解的特性把圖像的邊緣信息嵌入到載體圖像中，演算法對各種攻擊都具有很好的敏感性;內容認證方法，從載體圖像中提取出一個脆弱水印和一個魯棒水印，並把它們重新嵌入到載體圖像中，認證時，通過兩個水印在圖像傳輸前後的變化情況來對圖像的保留價值進行評估，並準確定位受攻擊部位。 -
The conventional principal component analysis ( pca ) and fisher linear discriminant analysis ( lda ) are based on vectors. that is to say, if we use them to deal with the image recognition problem, the first step is to transform original image matrices into same dimensional vectors, and then rely on these vectors to evaluate the covariance matrix and to determine the projector
所提出的這兩種方法的共同特點是，在進行圖像特徵抽取時，不需要事先將圖像矩陣轉化為高維的圖像向量，而是直接利用圖像矩陣本身構造圖像散布矩陣，然後基於這些散布矩陣進行主分量分析與線性鑒別分析。 -
The experiment results from practical multispectral images have shown that this algorithm is efficient. if the original image is reconstructed by five eigen subimages, the nearlossless compression ratio is above 11 for the data used in this paper and the psnr is more than 45db
實驗結果表明，對機載64波段多光譜遙感圖像進行k - l變換和整數小波變換后，選用五個本徵子圖像重建原圖像，壓縮比可以達到11以上，峰值信噪比則超過45db ，取得了其它方法無法獲得的效果。 -
The main results in this paper as follows : first, a prototype of a shape - based image database retrieval system is completed, it can receive the query mode both by giving an example image and by sketching the desired object on the screen, second, five shape - based image retrieval methods are realized ; third, an algorithm based on triangulation for shape - based image retrieval is brought forward. in this algorithm, firstly, the edge of the original image is followed and the candidate corners in the original image are detected. then the counterpoints of the candidate corners in the result of edge follow are found, and the boundary corners whose counterpoints have been found are queued in the order of their counterpoints in edge follow
同時本文中主要完成了以下三方面的工作：完成了一個基於形狀特徵的圖象檢索的原型系統，可實現例子圖象或徒手繪草圖兩種查詢方式；實現了五種利用形狀特徵進行圖象檢索的具體方法，並對其進行了分析比較；並且在繼承將三角剖分引入形狀檢索的思想基礎上提出了利用三角剖分進行形狀檢索的一種新演算法：先對原圖象進行邊界跟蹤和角點檢測；然後尋找初始角點在邊界跟蹤中的對應點，並對找到對應點的角點按其對應點在邊界跟蹤中的順序進行排序；再對排序后的角點進行德洛內三角剖分，得到能表示目標真實形狀的三角形序列；最後計算三角形序列的角度直方圖作為形狀特徵，並進行相似性匹配。 -
The resume process actually is as approximate calculation. a new method in this paper was presented to resume the original image based on the pixel analysis
本文在運動成像模型的基礎上，結合圖象的特點，以圖象象素分析的方法進行恢復。 -
If possible try to recover portions of the image that have been tampered without accessing the original image. in the past, several techniques and concepts based on data hiding or steganography have been introduced as a means for tamper detection in digital images and for image authentication - fragile watermarks, semi - fragile watermarks, and self - embedding watermarks. the research of this thesis mainly includes self - embedding and semi - fragile watermarks
目前用於數字圖像完整性驗證及自修復的數字水印方案主要有完全脆弱性水印、半脆弱性水印、自嵌入水印等，本文主要研究自嵌入及半脆弱數字水印，分別從空域及變換域角度詳細分析當前國內外現有的各種演算法，指出其不足之處，並提出了相應的改進演算法，實驗結果表明本文演算法的有效性與實用性。 -
The second approach used for traitor tracing, combines cepstrum features with spread spectrum theory. no original image but the key is required for watermarking extraction
第二種演算法可用於非法源跟蹤，它將倒譜特性與擴頻通信理論相結合，水印提取時只需要密鑰而不需要原始圖像。 -
The approximate part get rid of high frequency through the filter, so it can detect the edge which the original image can ' t detect
經濾波后近似部分去除了高頻分量，因此能夠檢測到原圖像所檢測不到的邊緣。
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