﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>C++博客-bobokids-文章分类-应用软件</title><link>http://www.cppblog.com/boob-wang/category/8377.html</link><description>放大自己</description><language>zh-cn</language><lastBuildDate>Tue, 30 Sep 2008 10:30:04 GMT</lastBuildDate><pubDate>Tue, 30 Sep 2008 10:30:04 GMT</pubDate><ttl>60</ttl><item><title>图象的压缩编码，JPEG压缩编码标准</title><link>http://www.cppblog.com/boob-wang/articles/62943.html</link><dc:creator>晾衣竿</dc:creator><author>晾衣竿</author><pubDate>Sat, 27 Sep 2008 18:49:00 GMT</pubDate><guid>http://www.cppblog.com/boob-wang/articles/62943.html</guid><wfw:comment>http://www.cppblog.com/boob-wang/comments/62943.html</wfw:comment><comments>http://www.cppblog.com/boob-wang/articles/62943.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cppblog.com/boob-wang/comments/commentRss/62943.html</wfw:commentRss><trackback:ping>http://www.cppblog.com/boob-wang/services/trackbacks/62943.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 摘要: 图象的压缩编码，JPEG压缩编码标准在介绍图象的压缩编码之前，先考虑一个问题：为什么要压缩？其实这个问题不用我回答，你也能想得到。因为图象信息的数据量实在是太惊人了。举一个例子就明白：一张A4(210mm&#215;297mm) 幅面的照片，若用中等分辨率(300dpi)的扫描仪按真彩色扫描，其数据量为多少？让我们来计算一下：共有(300&#215;210/25.4) &#215;(300&#...&nbsp;&nbsp;<a href='http://www.cppblog.com/boob-wang/articles/62943.html'>阅读全文</a><img src ="http://www.cppblog.com/boob-wang/aggbug/62943.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cppblog.com/boob-wang/" target="_blank">晾衣竿</a> 2008-09-28 02:49 <a href="http://www.cppblog.com/boob-wang/articles/62943.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>