LCD

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.)

说明：  3-D SPHIT 压缩Matlab 程序及一些宝贵的MRI 3D序列图(3-D SPHIT compression Matlab procedures and some valuable MRI 3D sequence diagram)

霍夫曼编解码matlab程序，包含熵的计算。(Hoffman codec Matlab procedures, including the calculation of entropy.)

利用哈夫曼树对简单文件进行压缩和解压缩，对数据的压缩集成(Compression and Decompression of Simple Files Using Huffman Tree)

说明：  Small calculator to realize simple calculation functions, interface more

MM1 Simulation model

Codes". Huffman coding uses a specific method for choosing the representation for each symbol, resulting in a prefix code (sometimes called "prefix-free codes") (that is, the bit string representing some particular symbol is never a prefix of the bit string representing any other symbol) that expresses the most common characters using shorter strings of bits than are used for less common source symbols. Huffman was able to design the most efficient compression method of this type: no other mapping of individual source symbols to unique strings of bits will produce a smaller average output size when the actual symbol frequencies agree with those used to create the code. A method was later found to do this in linear time if input probabilities (also known as weights) are sorted.

介紹在AWGN頻道上bit error rate的推導過程。附有詳盡的圖解與算示。(Describes the AWGN channel bit error rate of the derivation. Accompanied by detailed diagrams and calculation shown.)

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)

16字节字符串压缩成12字节字符串算法，有压缩和解压的算法(16-byte string into a 12-byte string compression algorithm, compression and decompression algorithms)