登录
首页 » matlab » Jsteg

Jsteg

于 2021-04-19 发布 文件大小:793KB
0 272
下载积分: 1 下载次数: 25

代码说明:

  基于DCT的jsteg图像隐写及分析算法,MATLAB实现。 JSteg的算法主要思想是将秘密消息嵌入在量化后的DCT系数的最低比特位上,但对原始值为O、1的DCT系数不进行嵌入。提取秘密消息时,只需将载密图像中不等于0、l的量化DcT系数的LSB取出即可。(The main idea of the JSteg algorithm is to embed secret messages in the lowest bit of the quantized DCT coefficients, but the DCT coefficients of the original values are O and 1 are not embedded. When extracting secret messages, only the LSB of the quantized DCT coefficients not equal to 0 and l in the encrypted image can be taken out.)

文件列表:

lenna.JPG
pepper.bmp
Jsteg.m
lena512.bmp

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • SIFT
    用matlab写的sift算法的全过程,用于提取特征点,是图像识别的一种好算法(The algrithm of sift)
    2011-09-23 22:05:11下载
    积分:1
  • 2wei-max-entropy
    关于图像二维最大熵分割代码,matlab编写,关于图像二维最大熵分割代码,matlab编写,(2-D max entropy)
    2013-04-23 10:27:00下载
    积分:1
  • ICM--MRF--matlab
    基于MRF随机场的SAR图像分割 求最优算法ICM matlab语言(Based the MRF with airport SAR image segmentation to seek optimal algorithm ICM matlab language)
    2020-07-01 09:00:02下载
    积分:1
  • DE2_CCD
    说明:  此程序用来实现图像的采集和帧数的计算功能。(Image acquisition and calculation of the number of frames.)
    2011-04-17 09:43:37下载
    积分:1
  • ICP-point-cloud-registration
    三维激光点云配准是点云三维建模的关键问题之一。经典的 ICP 算法对点云初始位置要求较高且配准 效率较低,提出了一种改进的 ICP 点云配准算法。该算法首先利用主成分分析法实现点云的初始配准,获得较好 的点云初始位置,然后在经典 ICP 算法的基础上,采用 k - d tree 结构实现加速搜索,并利用方向向量夹角阈值去除 错误点对,提高算法的效率。实验表明,本算法流程在保证配准精度的前提下,显著提高了配准效率。 (Three-dimensional laser point cloud registration is one of the key three-dimensional point cloud model. High classical ICP algorithm to the initial position of the point cloud registration requirements and low efficiency, proposed an improved ICP point cloud registration algorithm. Firstly, the use of principal component analysis of the initial point cloud registration, get a better initial position of the point cloud, then the basis of classical ICP algorithm using k- d tree structure to achieve speed up the search, and using the direction vector angle the removal of the threshold point error and improve the efficiency of the algorithm. Experiments show that the algorithm processes to ensure the accuracy of registration under the premise, significantly improve the efficiency of registration.)
    2016-08-01 10:34:57下载
    积分:1
  • yiweizuidashang
    基于最大熵的图像分割阈值处理程序(单阈值)(Based on Maximum Entropy Image Segmentation threshold process (single-threshold))
    2008-01-20 15:48:40下载
    积分:1
  • Homomorphic_filter
    同态滤波函数:使用频域处理方法的同态滤波函数,非高斯,巴特沃斯或指数型。对于较黑的图像效果更好(Homomorphic filtering function: the use of frequency domain methods of treatment homomorphic filtering function, non-Gaussian, Butterworth, or index. For more images and better)
    2009-03-18 20:45:46下载
    积分:1
  • Jerman增强滤波器 可行
    说明:  基于hessian矩阵的眼底图像血管增强滤波(Vessel Enhanced Filtering of Eyeground Images Based on Hessian Matrix)
    2020-12-16 16:09:14下载
    积分:1
  • canny
    一种在二维、三维数据中利用Canny算子检测边缘的边缘检测器(A Canny edge detector for two-dimensional image and three-dimensional volume data.)
    2021-04-22 15:28:48下载
    积分:1
  • ICSA
    基于统计算法的红外图像非均匀性矫正算法,场景类算法,实现实时校正(IRFPA NUC)
    2013-07-15 22:47:06下载
    积分:1
  • 696516资源总数
  • 106914会员总数
  • 0今日下载