https://blog.youkuaiyun.com/mybakerzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/mybaker/article/details/6100543https://blog.youkuaiyun.com/mybaker/article/details/6100543mybakerMon, 27 Dec 2010 14:22:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/5733367https://blog.youkuaiyun.com/mybaker/article/details/5733367mybakerWed, 14 Jul 2010 09:24:00 +0800摘自网络，感谢原作者
摘要：
本文试图成为学习TCP/IP网络组播技术的入门材料。文中介绍了组播通信的概念及原理，以及用于组播应用编程的Linux API的详细资料。为了使读者更加完整的了解Linux 组播的整体概念，文中对实现该技术的核心函数也做了介绍。在文章的最后给出了一个简单的C语言套接字编程例子，说明如何创建组播应用程序。一、导言
在网络中，主机间可以用三种不同的地址进行通信：
单播地址（unicast）：即在子网中主机的唯一地]]>https://blog.youkuaiyun.com/mybaker/article/details/5702296https://blog.youkuaiyun.com/mybaker/article/details/5702296mybakerTue, 29 Jun 2010 16:51:00 +0800PSNR（Peak Signalto Noise Ratio）：峰值信噪比
峰值信噪比（PSNR），一种评价图像的客观标准。它具有局限性，PSNR是 “PeakSignaltoNoiseRatio”的缩写。peak的中文意思是顶点。而radio的意思是比率或比列的。整个意思就是到达噪音比率的顶点信号，psnr是一般是用于最大值信号和背景噪音之间的一个工程项目。通常在经过影像压缩之后，输出的影像通常都会有某种程度与原始影像?一样。为了衡量经过处理后的影像品质，我们通常会参考PSNR值来认]]>https://blog.youkuaiyun.com/mybaker/article/details/5690134https://blog.youkuaiyun.com/mybaker/article/details/5690134mybakerWed, 23 Jun 2010 20:29:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/5421130https://blog.youkuaiyun.com/mybaker/article/details/5421130mybakerFri, 26 Mar 2010 21:45:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/5274696https://blog.youkuaiyun.com/mybaker/article/details/5274696mybakerSun, 31 Jan 2010 16:02:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4970537https://blog.youkuaiyun.com/mybaker/article/details/4970537mybakerWed, 09 Dec 2009 12:24:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4891802https://blog.youkuaiyun.com/mybaker/article/details/4891802mybakerSat, 28 Nov 2009 00:11:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4891780https://blog.youkuaiyun.com/mybaker/article/details/4891780mybakerSat, 28 Nov 2009 00:05:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4891445https://blog.youkuaiyun.com/mybaker/article/details/4891445mybakerFri, 27 Nov 2009 22:44:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4832694https://blog.youkuaiyun.com/mybaker/article/details/4832694mybakerThu, 19 Nov 2009 08:57:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4825890https://blog.youkuaiyun.com/mybaker/article/details/4825890mybakerWed, 18 Nov 2009 09:35:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4745779https://blog.youkuaiyun.com/mybaker/article/details/4745779mybakerFri, 30 Oct 2009 00:31:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4745769https://blog.youkuaiyun.com/mybaker/article/details/4745769mybakerFri, 30 Oct 2009 00:24:00 +0800https://blog.youkuaiyun.com/mybaker/article/details/4745738https://blog.youkuaiyun.com/mybaker/article/details/4745738mybakerFri, 30 Oct 2009 00:13:00 +0800