matlab_jpeg

代码实现了基于ARM7的MPEG-4视频解码器，由C代码和汇编混合编写，已经在ARM7TDMI平台调试通过。(Code based on the ARM7 realize the MPEG-4 video decoder, from C code and compilation of mixed-prepared, has been adopted ARM7TDMI debugging platform.)

这是一个练习使用位写入/写出的程序，利用bitio.c和bitio.h工具整合，可以向文本文件E:\bitio1.txt中读取和写入数个位，使用者可以通过调试功能进一步了解位写入写出的作用。进而给今后做数据压缩打下基础。(This is a practice using bit write/write program, using bitio.c and bitio.h tool integration, you can read and write several bits to the text file E: \ bitio1.txt, the user can pass Debugging function to further understand the role of bit write write. And then lay the foundation for future data compression.)

JPEG编码解码,源程序由matlab编写，详细readme说明(JPEG codec, the source code from matlab to prepare a detailed readme Description)

压缩与解压缩类；压缩文件至.zip包内，增加文件至.zip包内，及解压缩相关操作。(zip and unzip。)

说明：  基于ANN神经网络预测方法，可以较为精确地绘制出预测值与实际值以及误差的曲线(ANN-based neural network prediction method, you can more accurately draw predictive value and the actual value and the error curve)

文件中有两个编码程序，一个是简单的游程编码仿真实现，另一个是图像的游程压缩编码实现(There are two coding programs in the file. One is a simple run-length coding simulation implementation, the other is the image run-length compression coding implementation.)

说明：  lzw压缩算法，可以实现对图像的lzw压缩，容易理解(LZW compression algorithm can realize LZW compression of image, easy to understand)

SPIHT算法研究，小波变换，图像压缩。。。。(Research on SPIHT algorithm,Wavelet transform, image compression)

说明：  JPEG压缩，matlab实现的JPEG压缩算法(JPEG compression, matlab code)

常用图像压缩编码码matlab实现。包括：DM编码、变换编码（FFT和DCT）、算术编码、行程编码、Huffman编码、线性预测编码和一个近似的JPEG编码过程。非常适合入门用户实践。(Commonly used image compression coding matlab code to achieve. Including: DM coding, transform coding (FFT and DCT), arithmetic coding, Run-Length Coding, Huffman coding, linear predictive coding and a process similar to JPEG encoding. Very suitable for the practice of entry-users.)