嵌入算法 meaning in English
embedding algorithm
Examples
- To the common requirement of invisibility of the two , the paper presents a information hiding strategy which first uses cluster analysis methods ( this paper uses k - means algorithm ) to classify the image to get the nature of the image , and then uses one embedding algorithm , accounting the improvement on the conceal effect using image ' s character
接着对信息隐藏技术的两个重要分支隐写术与数字水印技术，阐述其各自特点及异同点，针对二者在不可见性上的共同要求，从利于图像自身的特性增强掩密效果的思路出发，提出先用聚类分析的方法(本文采用了k -均值算法)对图像的像素点进行分类以充分发掘图像自然的内在特性，再结合嵌入算法的信息隐藏策略。 - When recovering watermark information , only part content of the database is needed . the experiments results show that the safety and robustness are improved . even if the attacker knows the embedded algorithm , only the shared watermark information can be got , and the original watermark can ’ t be recovered
本文提出了基于中国剩余定理的数据库水印算法,实现了基于数据库的部分内容恢复水印信息,攻击者即使知道水印嵌入算法,也只能提取出经过分存后的水印信息,无法恢复出原始水印。 - In this dissertation , we study the technologies and application of multimedia information security in the area of digital watermarking . the main contributions of this dissertation are : a newly watermarking algorithm with gray - level image based on dwt and svd is proposed : now , most of the watermarking algorithms hide the random signal or two - value image into the image ; only a few watermarking algorithms hide the gray - level image into the image . in my dissertation , we study the algorithm that hides the gray - level image into the image and gain some result
提出了一种基于dct和svd的一种灰度水印嵌入算法：现在大部分的数字水印技术所嵌入的水印一般是随机信号或者是二值图象，那么用有意义的灰度图象作为水印信号的嵌入技术很少见，本人所提出的这种算法对这方面的技术进行了尝试，提出了一种基于dct和svd的灰度水印嵌入算法，这种算法的先进之处就是嵌入的水印信息是信息量很大的灰度图象。 - A new type of blind watermarking technology , which has the advantage of adopting watermarking embedding algorithm is introduced based on wavelet transform and cosine transform , so the original image isn ' t necessary when picking up watermarking and the transparency and robustness of digital watermarking system is well fulfilled , the attack in the forms of noise , median filtering and compress can be withstood , and high pass filtering and low pass filtering can also be endured
摘要详细介绍了基于一种新型的基于小波变换和余弦变换的盲水印数字水印技术，这种方法的一个显著的优点就是采用水印嵌入算法，提取水印的时候不需要原图象，能够很好的满足了数字水印系统的透明性和鲁棒性，能够经受住加入噪声、中值滤波、压缩等方式的攻击，并且还能够经受住高通滤波和低通滤波。 - It is a pop method to embed watermark in frequency field , in most literature , they embed watermark into the coefficients of fft , dct , or high - frequency of dwt using quantization method , we think that : embedding watermark into the low - frequency of audio signal dwt field can improve the robustness of watermark . the watermark is embedded in the maximum of subsection of approximate component the watermark signal using quantization method , for the same quantization size , the “ noise ” added to the signal is
在频率域嵌入水印信息,是目前一种主流的嵌入算法,在很多文献中,都是通过量化音频信号的ftf系数, dct系数,或者是dwt域的高频系数。我们认为:在小波域内的近似分量(低频系数)中嵌入水印能够提高数字水印的鲁棒性,通过量化嵌入水印的方法,将水印嵌入到近似分量中每个分段中最大值上,因为这样对于同一个量化步长,量化对象的幅值越大,所叠加的“噪声”就越小,从而提高了数字水印的不可感知性。