A blind watermarking algorithm based on image integer wavelet transform 基于圖像整數(shù)小波變換的盲數(shù)字水印嵌入算法
( 3 ) presenting digital watermarking embedding algorithm based on quantization in low - frequency in dwt domain ( 3 )提出了基于量化音頻小波域低頻系數(shù)的水印嵌入算法。
According to zero - watermarking , a zero - embedding algorithm for multiple watermarks was proposed based on wavelet and chaos 摘要根據(jù)零水印概念,提出一種基于小波和混沌的多重水印零嵌入算法。
Aiming at a specific binary images - pdf417 2d barcode , a new information hiding method based on boundary shift was brought up 針對一類特定的二值圖形pdf417二維圖形碼,提出了基于邊界移位的隱藏信息嵌入算法。
At the same time , the direction along which the watermark bit is embedded is also adaptive to the local geometry , which is rather a novel idea 同時,與已往自適應(yīng)水印嵌入算法不同的是:水印嵌入方向也自適應(yīng)于局部幾何特征。
Experiments show that choosing frequency domain to embed watermarking can gain image fidelity better and have more robustness than watermarking embedded algorithm in space domain 實驗證明選擇頻域嵌入水印可以獲得更好的圖像保真度并且比在空域中的水印嵌入算法更穩(wěn)健。
After analyzing the digital watermarking techniques for binary images , the conclusion that a successful information hiding technique must he based on the special structure of the hidden media was made 摘要綜合分析了二值圖像數(shù)字技術(shù),得到可根據(jù)結(jié)構(gòu)特征設(shè)計二值圖像信息嵌入算法的結(jié)論。
In fingerprint embedding , we adopted the dwt technique and spread spectrum algorithm that make the fingerprint embedded into data imperceptible and robust , and in the extracting process used correlating algorithm 在指紋嵌入技術(shù)研究中,采用了小波變換技術(shù)及擴(kuò)頻嵌入算法,使指紋嵌入到數(shù)字作品后具有良好的不可感知性及穩(wěn)健性,并用相關(guān)檢測算法提取指紋。
With the multi - resolution analysis of wavelet and the vision character of the human eyes we decompose the image in wavelet domain , which can get better image and is more robust than the arithmetic embedded with hid information in airspace 利用小波變換的多分辨率特性并結(jié)合人眼的視覺特性來進(jìn)行圖像的小波域分解,這樣可以獲得更好的圖像保真度并且比在空域中的隱藏信息嵌入算法更穩(wěn)健。
In this article , a algorithm ccn ( calculate crossing number ) is put forward to study the crossing number . it is a very important development in graph planarity issue after planarity - determinant algorithm and embedding algorithm 本文首次給出了較好的計算圖的交叉數(shù)算法ccn ( calculatecrossingnumber ) ,這是繼圖平面性判定算法,二連通圖的平面嵌入算法之后在圖的平面性問題上的一個最重要的進(jìn)展。