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dct.rar
- 已知两个不同图像块亮度数据如下： （1）分析DCT原理，采用DCT方法，编程并计算相应的DCT系数，分析系数分布特点。 （2）依据视觉特性分析量化表步长的分布特点，完成DCT系数量化。 （3）采用Z形扫描，实现输出数据的统计编码，形成Video stream。 （4）采用IDCT重建图像亮度数据，计算SAD大小，分析产生误差的原因及采用DCT进行数据压缩的原理。（ ） （5）分别利用左上角1、3、6个系数重建图像，计算相应的SAD，并由
lsb
- 信息隐藏与水印技术的经典隐写算法的lsb算法的加密，用C实现-Information Hiding and Watermarking classic lsb steganalysis algorithm encryption algorithm, using C to achieve
LSB-Data-Hiding-Image
- 图像的组成无非是一些字符串或者一些字节组成的字符串，然而，每一个字节数据位的重要度并不是一样的，两个相邻字节往往只有低位是不一样的。例如：00100110和00100111代表了两个不同渐变度的红色，但是就人眼是分辨不出来的。最低有效位LSB算法，就是利用这一点，达到图像压缩，或者数字水印的功能。-The composition of the image is nothing more than some number of bytes or string composed of string,
LSBxinxiyincangfenxi
- 介绍了一种基于统计特性的LSB密写分析方法,对其进行了改进并提出了可靠估计信息隐藏长度的方法。该方法利用相邻像素相关性定义了统计量,可根据阈值判断秘密信息的有无。对待检测图像进行二次嵌入,根据统计量的变化建立模型,能可靠估计秘密信息隐藏长度。实验表明,估计出的信息量比较准确。-This paper introduces a steganalysis algorithm based on statistics method for LSB steganograhpy and mends it,pr
LSB_Data_Hiding_Image
- 这是一个用MATLAB实现的把数据隐藏到图片的最低有效位，且不影响图片的视觉效果，对研究LSB算法的同学很有帮助。-This is a MATLAB achieved by hiding the data into the least significant bit images and does not affect the picture of the visual effects, for research students LSB algorithm is very helpful.
hidetc
- steganography tool for hiding data in image using LSB hiding technique
desordtext
- while reading the hidden text disorder them from the cover image
CPT
- CPT algorithm data hiding in image
DCT_based_Data_hiding
- DCT-based Data hiding: dataHide.m Hide the logo image into the original dataExtract.m Extract the logo image from the original findData.m Verify the robustness of the data hiding method 。and use jpeg compress -DCT-based Data hiding: dataHide.m H
proj_code01210
- watermarking is the art of hiding data to provide authenticity and security.
matlabcodeechohiding
- this the sample of matlab coding for echo hiding data audio steganography... use your own input-this is the sample of matlab coding for echo hiding data audio steganography... use your own input
stegnography
- Data hiding in the still image presets a variety of challenges that arises due to the way human visual system (HVS) works and the typical modifications that image undergoes. Additionally, still images priced a relatively small host signal in which to
hiding
- 关联规则隐藏技术算法的资料，厘米昂阐述了两种算法实现。-Association Rule Hiding Algorithm of data, cm Aung described two algorithms.
ThodiTian
- 实现数据图像隐藏，无损数据隐藏，是2002年thidi&tian发表论文中的方法，现用MATLAB实现-For data hiding, lossless data hiding, is published in 2002 thidi & tian paper method is achieved using MATLAB
rokni-DataMasking
- about hiding data in image and sound
Reversible-and-high-capacity-data-hiding
- Reversible data hiding technique paper
Reversible-New-Code
- Reversible data hiding in images
[PPT]Reversible-and-high-capacity-data-hiding-in-
- Reversible data hiding in matlab for ppt
Reversible-Hiding
- 文中提出了一种基于动态峰值的大容量可逆图像水印算法。该算法利用分块图像直方图的分布特点来确定新峰值,并通过修改相应的像素灰度值实现了在空间域中隐藏信息。该算法还可以利用嵌入点的信息无损地恢复原始图像。-In this paper, a new reversible data hiding scheme based on the dynamic peak is proposed. This algorithm utilizes a new peak between peak and zero in
Hiding-data-in-an-image
- matlab程序源码，可以在图像中隐藏信息-Hiding data in an image