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Jsteg
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.)
- 2021-04-19 23:48:51下载
- 积分:1
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ecg_r
对ecg信号进行预处理,并检测ecg的r波,并进行特征提取,并在图中进行标注(On ecg signal preprocessing and detection of r ecg wave, and feature extraction, and marked on the drawing)
- 2020-11-18 17:39:38下载
- 积分:1
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jibencaozuo
这是运用matlab进行图像处理时会遇到的基本操作,包括图像的代数运算、几何运算、空间变换、区域操作等(This is for image processing using matlab will encounter the basic operations, including images of algebra, geometry operations, space transformation, regional operations, etc.)
- 2011-06-29 23:20:54下载
- 积分:1
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txcl
说明: 实现了图像的打开功能,并能实现图像打开时的扫描,渐进,马赛克等功能(To realize the image of the open function, and can achieve image scans open, progressive, mosaic and other functions)
- 2010-04-18 22:43:57下载
- 积分:1
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中心线提取
在激光三维测量中,提取每一张图片的激光条纹中心坐标得到激光中心线。(In the laser 3D measurement, the central coordinates of the laser stripe are extracted from each image to obtain the central line of the laser.)
- 2020-10-20 15:47:24下载
- 积分:1
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single_phase_grid_pv
单相并网光伏逆变系统仿真,带最大功率点跟踪(PV system is connected to grid through single phase inverter)
- 2013-09-03 13:37:00下载
- 积分:1
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ppkd
基于有限高斯混合模型的EM算法的源程序代码,里面有实验报告和运行结果。
(based on finite Gaussian mixture model of the EM algorithm source code, which has run reports and experimental results.)
- 2006-11-02 09:00:17下载
- 积分:1
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MATLAB-Functions-
计算机视觉经典著作《计算机视觉中的多视图几何》配套代码(MATLAB and Octave Functions
for Computer Vision and Image Processing)
- 2017-01-02 20:09:44下载
- 积分:1
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SURF
说明: 进行图像的特征提取,为图像拼接做准备,matlab(Feature extraction of image)
- 2020-06-18 03:20:02下载
- 积分:1
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Surf特征匹配
说明: 实现多视两幅图像的surf特征点提取与匹配(Achieve surf feature point extraction and matching of two multi-view images)
- 2021-03-28 11:39:11下载
- 积分:1