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coding
- 此代码是在保持信噪比的情况下，进一步提高了压缩比。灰度级的减少，势必会降低信噪比，但因为是处以比较小的整数，并没有引起熵值的剧烈变化，编码后信噪比基本不变。-This code is to maintain the signal to noise ratio of the case, to further improve the compression ratio. Gray-scale reduction, will inevitably reduce the signal to noise
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
Zip_Compression
- 一个简单的文件/文件夹的压缩/解压缩软件，可以实现良好的压缩率和效率-A simple file/folder compression/decompression software, you can achieve a good compression ratio and efficiency
1
- 该算法由变换组合优化、彩色分量加权、CSF滤波三部分组成。实验结果表明，在非常大的压缩比率范围下，该算法的客观质量和主观质量都优于JPEG2000有损变换算法和JPEG2000无损压缩算法。-Optimization of the algorithm by the transformation, color component weighted, CSF filtering of three parts. The results show that in the very large compr
yssf
- lz77.pas为borland公布的算法，但其核心实现是C语言.相对别的压缩算法压缩比很高-lz77.pas algorithm for the borland released, but its core achieved a C language. compared to other compression algorithms compression ratio is high
Huffman
- 使用哈弗曼算法将文件压缩，压缩比带该是1:3，如果将里面的类进行修改就可以自己使用了。-Use Havermann file compression algorithm, compression ratio is 1:3 with that, if you modify the class which can be their own use.
UPX.v3.05
- UPX是一个非常好的可执行文件压缩软件，压缩过的可执行文件体积缩小50 -70 ，这样减少了磁盘占用空间、网络上传下载的时间和其它分布以及存储费用。 通过 UPX 压缩过的程序和程序库完全没有功能损失，和压缩之前一样可正常地运行。支持的格式包括 atari/tos，djgpp2/coff，dos/com，dos/exe，dos/sys，rtm32/pe，tmt/adam，watcom/le，win32/pe，Linux/i386 等等，压缩比率也非常的高。-UPX is a very good
pca_data_compress
- matlab实现lena图的压缩，可以选择压缩比，并附有实验的结果和分析-matlab implementation lena map compression, you can choose the compression ratio, together with the experimental results and analysis
x264_encrypt
- H.264加密算法，针对目前流行的数字版权多媒体技术方面的研究成果，算法对不同内容多媒体文件进行加密，基本没有影响压缩比，效果较好，很有价值的代码！-H.264 encryption algorithm, digital rights for the popular multi-media technology research, algorithm to encrypt multimedia files of different content, basic does not affect t
lzma912
- 7-Zip 是一款拥有极高压缩比的开源压缩软件。而lzma是其核心算法，拥有当前最优秀的压缩比与压缩效率。非常值得一看-7-Zip is a compression ratio of open source with a high compression software. The lzma is the core algorithm, with the most excellent compression ratio and compression efficiency. Is worth a
Ultra[1].RM.Converter.v3.5_PortableSoft.Cn
- rm转换工具，用于流媒体播放的rm格式转换，压缩率很小，可以选择。-rm conversion tool for streaming media to play rm format conversion, compression ratio is small, you can choose.
newmethod
- golomb compression ratio and entropy
CompressD
- 测试Zlib 库 Deflate算法压缩率时间-Zlib Deflate algorithm library test time compression ratio
3d
- 一个高压缩比动画，我猜可能是用算法直接班级的，-A high compression ratio animation, I guess is the direct algorithm class,
huffsource
- 该软件可以压缩一个txt文档，并可以解压，压缩比例在50 左右。-The software can compress a txt document, and can extract, compression ratio of 50 .
Denoise_compression
- 分形在图像压缩技术中的应用已成为图像数据压缩领域中最为热点的问题之一 其压缩比在理论上可超过经典压缩方法的几个数量级。 -Fractal image compression technology in the application of image data compression has become an area of one of the most hot spots in theory, its compression ratio can be compressed more t
ADPCM
- ADPCM(Adaptive Differential Pulse Code Modulation)，是一种针对 16bits( 或8bits或者更高) 声音波形数据的一种有损压缩算法,它将声音流中每次采样的 16bit 数据以 4bit 存储,所以压缩比 1:4. 而且压缩/解压缩算法非常简单,所以是一种低空间消耗，高质量高效率声音获得的好途径。保存声音的数据文件后缀名为 .AUD 的大多用ADPCM 压缩-ADPCM (Adaptive Differential Pulse Code Mod
ImageCompress
- 利用主分量分析技术进行图像压缩，实验证明该算法具有很好的压缩比-Using principal component analysis for image compression, experimental results show that the algorithm has very good compression ratio
HuffmanTree
- C++编写实现的Huffman编码，根据输入自动统计字符出现的次数后编码，并计算编码后的压缩比。-Written C++ implementation of Huffman coding, the input character appears automatically after the number of statistical encoding, and calculate the encoded compression ratio.
Compress
- 按照用户输入的压缩率，完成对灰度图的压缩-Compression ratio in accordance with user input to complete the compression of grayscale