A blind watermarking algorithm based on image integer wavelet transform 基于图像整数小波变换的盲数字水印嵌入算法
( 3 ) presenting digital watermarking embedding algorithm based on quantization in low - frequency in dwt domain ( 3 )提出了基于量化音频小波域低频系数的水印嵌入算法。
According to zero - watermarking , a zero - embedding algorithm for multiple watermarks was proposed based on wavelet and chaos 摘要根据零水印概念,提出一种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 针对一类特定的二值图形pdf417二维图形码,提出了基于边界移位的隐藏信息嵌入算法。
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 同时,与已往自适应水印嵌入算法不同的是:水印嵌入方向也自适应于局部几何特征。
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 实验证明选择频域嵌入水印可以获得更好的图像保真度并且比在空域中的水印嵌入算法更稳健。
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 摘要综合分析了二值图像数字技术,得到可根据结构特征设计二值图像信息嵌入算法的结论。
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 在指纹嵌入技术研究中,采用了小波变换技术及扩频嵌入算法,使指纹嵌入到数字作品后具有良好的不可感知性及稳健性,并用相关检测算法提取指纹。
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 利用小波变换的多分辨率特性并结合人眼的视觉特性来进行图像的小波域分解,这样可以获得更好的图像保真度并且比在空域中的隐藏信息嵌入算法更稳健。
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 本文首次给出了较好的计算图的交叉数算法ccn ( calculatecrossingnumber ) ,这是继图平面性判定算法,二连通图的平面嵌入算法之后在图的平面性问题上的一个最重要的进展。