搜索资源列表
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
hidetc
- steganography tool for hiding data in image using LSB hiding technique
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
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
10.1.1.59.1669
- The few-color images are often synthetic graphics without complicated color and texture variation, which makes the embedding of invisible digital watermark difficult. This paper proposes a data hiding method that can hide a moderate amount of data in
Distortionless_Data_Hiding
- The code implements the following paper: Guorong Xuan, Jiang Zhu, Jidong Chen, Shi Y.Q., Zhicheng Ni, Wei Su, "Distortionless data hiding based on integer wavelet transform" IET Electronics Letters, Volume: 38, Issue 25, page 1646- 1648, Decembe
parul
- this code is used to do data hiding in image and then take it back ..........pandey
Image-Data-Hiding
- to see GUI in platform MATRIX LABORATORIUM
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
svd-in-data-hiding
- 是一篇关于图像数字水印你的外国文献，主要的水印算法是围绕svd和dwt展开的。希望对你有用。-A foreign literature on the image watermarking, watermark algorithm is built around svd and dwt expanded. I hope useful for you.
LSB-Data-Hiding
- LSB 信息隐藏方法，分别对BMP图像 和 YUV视屏帧进行LSB信息隐藏。-LSB information hiding, and BMP image and YUV screen frame LSB Information Hide
image-processing-data-hiding-code
- some useful matlab code for data hiding for example psnrcompare wavelet transform arnold transform and -some useful matlab code for data hiding for example psnrcompare wavelet transform arnold transform and ...
Reversible data hiding for image
- Reversible data hiding of information bits in an image.
NEW SECURE IMAGE TRANSACTION TECHNIQUE-GUI
- Secure image data hiding using mosaic method
Information Hiding
- 文件主要通过matlab实现图像的数据隐藏，以及相关优化代码(File is mainly achieved through MATLAB, image data hiding, and related optimization code)
2
- separable reversible data hiding in encrypted image