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miyao
本文提出了基于二维混沌映射的数字图像水印算法,混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数,实现了数字水印的隐蔽性、保密性和稳固性;利用二维混沌映射Arnold变换对水印信号进行置乱,不仅增强了水印信号保密性,同时有效提高了视觉上抵抗图像剪切攻击的能力。(In this paper, two-dimensional chaotic map based on digital image watermarking algorithm, Chaos with random noise and the likelihood of extreme sensitivity to initial conditions and so on. Two-dimensional chaotic map will be scrambling after the digital watermark embedded image signal of the low-frequency coefficients in wavelet domain, the realization of a digital watermark hidden, security and stability the use of two-dimensional chaotic map on Arnold transform scrambling watermark signal, not only enhances the confidentiality of the watermark signal at the same time improve the visual image shear resistance attacks.)
- 2009-06-28 10:11:45下载
- 积分:1
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testdatabasedll
数据库功能展示,vc连接access数据库,实现增删查找功能(Database function display, vc connection access database, add or delete search function to achieve)
- 2011-01-24 17:04:23下载
- 积分:1
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一个有关用C#做插件(Add
一个有关用C#做插件(Add-in)的源代码。
有助于帮助我们在使用.net平台下开发相关的功能插件,并提供许可证。-one of the C# plug-do (Add-in) the source code. Help us to help in use. Net platform functions related to the development of plug-in and provide permits.
- 2022-05-25 17:54:04下载
- 积分:1
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小波变换,恢复物体三维面形,小波取“脊”方法
小波变换,恢复物体三维面形,小波取“脊”方法.利用MATLAB恢复出物体三维面型,和计算
出其误差,恢复结果,以及恢复误差图
- 2022-08-25 09:50:10下载
- 积分:1
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C#计算器
进行简单的加减乘除,符号,正余弦等,界面美观。
- 2022-07-19 06:09:28下载
- 积分:1
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LDPC--C
说明: 此为C++环境下的LDPC编译码的完整的源代码。常用于通信系统的编译码仿真过程。有助于各种项目的完成。(This is the C++ environment LDPC coding and decoding of the complete source code. Commonly used in the encoding and decoding communication system simulation. Contribute to the completion of various projects.)
- 2011-03-14 18:56:37下载
- 积分:1
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CPP-STL-file-to-read
使用C++ STL进行文件读取,介绍C++标准模板库的基本操作。可以学习对stl的基本操作和数据处理。同时包含对文件的基本编程。(Use C++ STL file read, introduces the basic operation of the C++ standard template library. Can learn the basic operations and data processing of stl. The file contains both basic programming.)
- 2012-12-18 17:59:56下载
- 积分:1
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Image-recognition
图像识别技术及其在机械零件无损检测中的应用(Image recognition technology and its application in mechanical parts NDT Applications)
- 2013-11-16 11:00:17下载
- 积分:1
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CPPPrima
Mathematic Pascal problems. it is a lil bit easy with a triangle structure. and the number inside.
- 2009-03-17 21:26:58下载
- 积分:1
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daq
实现数据采集的功能,采样率500k,并且是双通道的,(adcssiphashapahsopahaosidh)
- 2018-06-25 21:29:29下载
- 积分:1