隐写分析

F5隐写分析算法利用收缩现象，比较剪裁后图像直方图和估计载体图像直方图的差异进行检测。

F5 steganalysis uses the shrinkage and compares the differences between estimation of the cover-image histogram and the stego-image to realize detection .

文中结合隐写分析中的检测技术和密码分析中的相关攻击技术，对空域图像LSB隐写术提出了一种隐写密钥恢复方法。

By combining detecting techniques in steganalysis and correlation attack in cryptanalysis , the authors propose a new method to recover the stego key of LSB steganography in spatial domain of images .

较之二类分类隐写分析方法，所设计方案具有更好的通用性。（3）设计了一种基于独立成分分析（ICA）模型的隐秘信息估计方案。

Compared with two-class classifier , the proposed method has the better generality ability . ( 3 ) A novel program based on ICA ( independent component analysis ) was designed to estimate the embedded messages .

该方法针对文本图像灰度分布特点，对于背景色像素和非背景色像素使用不同的映射表嵌入秘密消息，进一步提高了秘密信息嵌入量，并具有一定的抵抗RS隐写分析的能力。

According to the gray value distribution features of document images , this algorithm adopts different ranges for background pixels and other pixels to embed information , which can improve the embedding capacity and has some resistance to RS detection .

隐写分析是对网络上隐藏信息不可探测性的逆向分析手段。

Steganalysis is an kind of inverse direction analysis method to hiding information .

隐写分析&原理、现状与展望

Steganalysis & Principle , Actuality and Prospect

从算法的实验类比分析可以看出，算法具有良好的抗隐写分析性能。

According to the analogical experimental results , this approach has good properties of avoiding detection .

从理论和实验上论证直方图频域矩用于隐写分析的有效性。

Proved theoretically and experimentally the effectiveness of the moments in frequency domain of histogram as features for steganalysis .

基于音频的水印攻击和隐写分析是逆向研究，音频水印攻击的目标是妨碍水印信息顺利提取。

Audio watermarking attack mainly research on various attack methods to audio watermarking , which target is that obstacle the watermark information extracted smoothly .

首次提出以小波直方图频域统计矩作为特征进行隐写分析。

Proposed , for the first time , that statistical moments in the frequency domain of wavelet histogram of the image be taken as features for steganaysis .

介绍隐写分析的原理，给出隐写分析方法的四个评价指标，从隐写分析类型的角度给出图像隐写分析通用原型系统。

Steganalysis principle , gives four estimated values for steganalysis method and general prototype system of image steganalysis based on types of steganalysis from the view of warden are introduced .

并且从理论和实际两方面证实了，对于图像隐写分析，直方图频域矩比直方图空域矩更有效。

Our theoretical analysis and experimental results shows that the statistical moments in the frequency domain of the histogram is more effective than that in the spatial domain of the histogram .

图像隐写分析是检测、提取和破坏隐写图像中秘密信息的技术，是信息安全领域的研究热点之一。

Image steganalysis is a technique of detecting , extracting and destroying the hiding information in stegoimage , and it has become one of the focuses in the field of information security .

因此研究针对语音的信息隐写分析方法，对维护通信安全、预防恶意信息被传播危及国家信息安全有着重要意义。

In that case , studying analytical methods of voice communication with carrying secret information will be important . It can maintain the communications security , prevent the spread of malicious information , protect the national security in the maximum guarantee and so on .

实验表明，分别对LSB替换、匹配隐写进行分析，平均分类正确率可以达到90%以上。

Experiments show that the average classification accuracy rate can be above 90 % for either LSB replacement or matching steganography .

隐写术分析是检测、提取、破坏隐蔽载体中秘密信息的技术。

Steganalysis is a technique of finding , distilling and destroying the hiding information in stego-cover .

载体为图像的隐写术分析技术通过分析隐蔽载体的特点来识别该载体中是否存在嵌入信息。

Steganalysis technology with image carrier judges the existence of embeddeddata by studying the characteristic of steganographic carrier .

基于对图像小波变化后各子带系数的不同统计特性，提出了一种针对小波域信息隐藏算法的新型图像隐写术分析技术。

In this paper , a novel steganalysis method is proposed on the basis of statistical discrepancies of wavelet sub-band coefficients of an image between its hidden information version .

近年来，随着信息隐藏技术的发展，出现了以音乐设备数字接口（MIDI）音频为载体的隐写和隐写分析方法。

In recent years , with the development of information hiding technology , MIDI audio is being the carrier hidden secret message .

利用HAS掩蔽效应的变换域语音隐写算法研究与分析

Research and Analysis on Speech Steganography Using Masking Characteristics of HAS in Transform Domain

分析了隐写系统和隐写分析的基本原理，提出了一种新的隐写载体&纠错编码。

In this paper , basic principle of steganographic systems was analyzed , then a new steganographic cover-error-correction code was presented .

隐写检测是隐写分析技术的基础，目的是检测目标文件是否含有秘密信息，它在整个隐写分析过程中尤为重要。

Detection technology is the basis of steganalysis to inspect objective documents with secret information or not , it is the most important part in steganalysis .

本文在深入研究BMP图像LSB隐写算法的基础上，在图像隐写分析中提出了游程检验算法并给出了算法原理和工程实现。

Based on research results of Least Significant Bit ( LSB ) steganography in BMP images , this paper describes a run length detecting algorithm and gives the principle and realization of algorithm .

研究信息隐写技术及隐藏信息的检测&隐写分析技术，对国家信息安全具有重要意义。

Research on steganography and the detection of hiding message is very important to national communication security .

对隐写术的攻击被称为“隐写分析”，目前，隐写分析的研究主要集中于检测隐蔽信息是否存在。

The attacks on steganography is referred as to steganalysis , study on which mainly concerns about detecting the existence of hidden information .