ffmpeg-0.4.9-p20060530.tar.tar

继 Discrete Cosine Transform: Algorithms, Advantages, Applications (K. R. Rao and P. Yip) 之后的一本关于离散余弦变换(DCT)的快速实现算法的最新专著. 本书第五章“Integer Discrete Cosine/Sine Transforms”关于DCT整数近似实现写的非常详细和精彩, 很方便大家编程实现. 值得一提的是本书的第一作者Vladimir Britanak 一直在从事DCT, 尤其是改进的离散余弦变换(MDCT)的快速算法的研究.(This book, which is written very carefully, is a new monograph of Discrete Cosine Transform (DCT).The fifth chapter about the Integer Discrete Cosine/Sine Transforms is especially wonderful. )

说明：  使用霍夫曼huffman 編碼方式 對文件進行壓縮 程序很簡單 主要是幫助新人了解霍夫曼編碼的實現方法(The use of Huffman huffman encoding file compression program is very simple principal is to help newcomers understand the Hoffman encoding method)

说明：  Script Unpack Frimware Echolink Open Vu 9

视音频课程作业，对视频抽帧，对单张图片进行yuv420采样、DCT变化、量化以及反量化、IDCT变化(Jpeg Encoding & Decoding)

Deflate压缩算法源码，使用C++编写(Deflate compression algorithm source code, the use of C++ to prepare)

EZW算法的matlab代码，希望对大家有用(EZW algorithm matlab code, everyone would like to be useful)

说明：  huffman编码，根据输入进行权重计算并编码，还实现了解码。(Huffman coding, according to the input weight calculation and coding, but also achieve decoding.)

图像压缩的MATLAB算法之JEPG，完整的例程，参改价值高。(This compression is for jpeg in matlab with a whole example,and it s valuable to look at it!)

说明：  java 实 现 LZ77 解 压 源 码(LZ77 decompression java source code to achieve)

基于小波的SPIHT编码，没有用算法编码。是matlab程序(Wavelet-based SPIHT coding algorithm for encoding to no avail. Is matlab program)