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QccPack-0.54-1.tar
- QccPack-0.54-1 released (2007-04-30) is being developed and tested on Fedora Core Linux. QccPack provides an open-source collection of library routines and utility programs for quantization, compression, and coding of data. -QccPack - 0.54-1 released
lzwc
- 用c语言实现的数据压缩算法，核心算法为lzw算法-C language used to achieve data compression algorithm, the core algorithm lzw algorithm
dct
- JPEG压缩算法的核心是“视觉保真”原理，利用人类视觉系统特征进行处理，以达到最大图像数据压缩效果，实际上就是去除那些人眼不易觉察的信息。图像的空间频率对人的视觉至关重要，采用离散余弦变换可将图像分解成一组波，每个波有一个不同的空间频率，这样可以去除人类眼睛觉察不到的信息，而且还可使系统只保留重要的信息。-JPEG compression algorithm is the core of " visual fidelity" principle, the use of the
lzma912
- XZ Utils XZ Utils is free general-purpose data compression software with high compression ratio. XZ Utils were written for POSIX-like systems (GNU/Linux, *BSDs, etc.), but also work on some not-so-POSIX systems like Windows. XZ Utils are the suc
lz772
- LZ77压缩算法核心，CopyBits : 复制内存中的位流 memDest - 目标数据区 nDestPos - 目标数据区第一个字节中的起始位 memSrc - 源数据区 nSrcPos - 源数据区第一个字节的中起始位nBits - 要复制的位数 说明： 起始位的表示约定为从字节的高位至低位（由左至右）依次为 0，1，... , 7 要复制的两块数据区不能有重合-LZ77 compression algorithm core, CopyBits: copy memory bit st