This document presents an overview of the technology and business landscape, the applications, advantages and benefits of MPEG-4 - The Media Standard.
标签： applications technology landscape the
上传时间： 2013-12-04
上传用户：dianxin61
介绍了各种数字图像处理的算法分析及编程实现技术。全书由12章和一个附录组成。主要内容包括：位图基础、图像的显示、图像的几何变换、图像灰度变换、图像的平滑处理、图像锐化处理及边缘检测、图像分割及测量、图像的形态学处理、图像的变换域处理及应用、图像的合成、24位彩色图像的处理、JPEG图像的压缩编码。
上传时间： 2014-12-08
上传用户：comua
1)MCS51内核，可以利用单片及开发软件Keil软件方便开发mp3播放器，无需特殊软件平台； 2)MPEG I/II-Layer 3 hardware decoder .独立MP3 Decoder .支持48,44.1,32,24,22.05,16khz取样频率 .支持软件31阶音量控制,高中低音均衡控制 .重低音效果 3)集成DAC部件，支持PCM,IIS格式； 4)64K字节片上代码存储空间（100K次擦写寿命） 5)4K字节boot flash memory,USB/UART下载代码 6)集成USB1.1 device部件 7)MMC卡接口 8)IDE/ATAPI接口（HDD/CD-ROM Interface) 9)2通道ADC,8Khz取样 ....................... 关于该芯片的具体信息，可以访问www.atmel.com获取at89c51snd1c的datasheet. 这款MP3播放器以at89c51snd1c为核心，以硬盘为存储介质，液晶屏为双行显示，每行显示 7.5个汉字，这块液晶屏以ST7920作为主控制器，内部集成8129个汉字，液晶屏在这个播放器中 用来显示歌曲名称以及一些播放状态 支持FAT16，一个分区，不支持FAT32, USB1.1,速度有点慢
上传时间： 2013-12-20
上传用户：电子世界
利用DirectShow实现了Wince.Net平台下多媒体文件的播放功能，可以播放wmv、mpeg、mp3、wma等媒体文件。
标签： DirectShow Wince Net 多媒体
上传时间： 2014-01-01
上传用户：685
The J2000 codec was written in an effort to produce the cleanest and simplest implementation possible of the JPEG-2000 standard. We have put a particular emphasis on good architecture design and code simplicity, while at the same time providing an implementation as complete and efficient as possible. The source code for the codec is freely available for anyone to study or even for use in commercial programs. We hope that our open development process and our focus on clean, straightforward code will help make the J2000 codec become a reference implementation of the JPEG-2000 standard
标签： implementation cleanest simplest produce
上传时间： 2015-07-03
上传用户：dengzb84
DIGITAL IMAGERY is pervasive in our world today. Consequently, standards for the efficient representation and interchange of digital images are essential. To date, some of the most successful still image compression standards have resulted from the ongoing work of the Joint Photographic Experts Group (JPEG). This group operates under the auspices of Joint Technical Committee 1, Subcommittee 29, Working Group 1 (JTC 1/SC 29/WG 1), a collaborative effort between the International Organization for Standardization (ISO) and International Telecommunication Union Standardization Sector (ITUT). Both the JPEG [1–3] and JPEG-LS [4–6] standards were born from the work of the JPEG committee. For the last few years, the JPEG committee has been working towards the establishment of a new standard known as JPEG 2000 (i.e., ISO/IEC 15444). The fruits of these labors are now coming to bear, as JPEG-2000 Part 1 (i.e., ISO/IEC 15444-1 [7]) has recently been approved as a new international standard.
标签： Consequently efficient pervasive standards
上传时间： 2013-12-21
上传用户：源弋弋
This file contains a new and improved version of the Huffman coder, (June 29. 2001). The name is Huff06.m. There are also some additional files which are helpful when using Matlab for data compression: quantizer, different variants of run-length-encoding and end-of-block coding in Mat2Vec, and a program which do JPEG-like entropy coding. A complete compression example is shown in TestMat2Vec.m. This file is all you need for Huffman coding in MatLab.
标签： contains improved Huffman version
上传时间： 2015-07-05
上传用户：jeffery
IDCT-M is a medium speed 1D IDCT core -- it can accept a continous stream of 12-bit input words at a rate of -- 1 bit/ck cycle, operating at 50MHz speed, it can process MP@ML MPEG video -- the core is 100％ synthesizable
标签： continous IDCT-M accept medium
上传时间： 2015-07-07
上传用户：1583060504
这是06年4月刚刚完成的程序，从opencore.org下载而来。用vhdl语言描写，以及matlab仿真，testbench，以及在xinlinx上的综合。 The MDCT core is two dimensional discrete cosine transform implementation designed for use in compression systems like JPEG. Architecture is based on parallel distributed arithmetic with butterfly computation.
标签： 程序
上传时间： 2013-12-16
上传用户：123啊
AT89C51SND1具有以下功能： *MP3硬件解码器 -单独的MP3解码器 -支持48，44.1, 32, 24, 22.05, 16KHz采样频率 -左右声道独立的音量控制(软件使用31级) -重低音、中音、高音均衡控制(31级) -重低环绕声效果 -辅助数据输出 -“CRC错误”和“MPEG帧同步”指示
上传时间： 2014-12-08
上传用户：cjf0304
