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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.

压缩感知三维成像文献，是三维重建方面最新的文献(Compressed sensing three-dimensional imaging literature, is the latest three-dimensional reconstruction of the literature)

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说明：  java对GZIP的压缩格式提供了直接支持，可以方便的实现GZIP压缩与解压(right GZIP compression format provides direct support to facilitate the realization of GZIP Compression and Decompression)

CONTOURLET去噪。添加了高斯噪声很好的实现了图像的多尺度分解下的去噪与重建。实现了多尺度分解的子带去噪。(CONTOURLET denoise .this is denoise program. my english is poor!)

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.)

实现Huffman算法，对数据进行最优编码压缩。(huffman code)

语音编码中的MELP的经典估计，用于matlab实现(MELP speech coding in the classical estimate for matlab to achieve)

说明：  一个简单的32位位图压缩算法，基本思想是，扫描像素点，后面有雷同的就记下重复次数。(A simple 32-bit bitmap compression algorithm, the basic idea is to scan pixel, behind identical repetitions on the record.)

JPEG压缩核心变换DCT实现源码，用matlab7.0实现(JPEG compression core transform DCT achieve source used to achieve matlab7.0)