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SPIHT

于 2020-10-05 发布文件大小:306KB

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下载积分: 1 下载次数: 9

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代码说明：

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

文件列表：

SPIHT\contents.m, 1205 , 2008-03-20
SPIHT\func_DWT.m, 1476 , 2008-03-20
SPIHT\func_InvDWT.m, 1638 , 2008-03-20
SPIHT\func_Myappcoef2.m, 1683 , 2004-04-26
SPIHT\func_MyDescendant.m, 1046 , 2008-03-20
SPIHT\func_Mywavedec2.m, 2127 , 2004-04-26
SPIHT\func_Mywaverec2.m, 908 , 2004-04-26
SPIHT\func_SPIHT_Dec.m, 5640 , 2008-03-20
SPIHT\func_SPIHT_Demo_Main.asv, 1699 , 1980-01-04
SPIHT\func_SPIHT_Demo_Main.m, 1699 , 1980-01-04
SPIHT\func_SPIHT_Enc.m, 7918 , 2008-03-20
SPIHT\lena512.bmp, 263222 , 2003-05-22
SPIHT\lena512_reconstruct.bmp, 263222 , 1980-01-04
SPIHT, 0 , 2011-05-03

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A-REMARK-ON-COMPRESSED-SENSING
说明：一篇关于压缩感知的经典文章，压缩感知（Compressed sensing，简称CS，也称为Compressive sampling)理论异于近代奈奎斯特采样定理，它指出：利用随机观测矩阵可以把一个稀疏或可压缩的高维信号投影到低维空间上，然后再利用这些少量的投影通过解一个优化问题就可以以高概率重构原始稀疏信号，并且证明了这样的随机投影包含了原始稀疏信号的足够信息。(A classic article on compressed sensing, compressive sensing (Compressed sensing, referred to as CS, also known as Compressive sampling) different from the modern theory of the Nyquist sampling theorem, which states: the use of a random measurement matrix can be sparse or compressible high-dimensional signal projected to low dimensional space, and then use a small amount of projection by solving an optimization problem to be sparse with high probability to reconstruct the original signal, and prove that random projection of the original sparse signal contains enough information.)

2011-04-10 08:29:58下载

积分：1
softwarerelease
JPEG2000压缩图像质量评价代码，不需要原参考图像，很准确(the image quality assessment method, without the reference image. )

2020-07-10 21:58:54下载

积分：1
G
说明：上载蜂窝网无线定位遗传算法，希望大家相互交流学习。(Upload cellular wireless location genetic algorithm, hope that we learn from mutual exchanges.)

2010-01-28 19:37:52下载

积分：1
纸飞机4.0
ssr科学上网工具，该压缩文件已经配置好了，直接解压就可以使用了。(SSR scientific Internet access tool, the compressed file has been configured, the direct decompression can be used.)

2020-06-29 08:40:01下载

积分：1
Compression
用pb10和myzip.dll实现的压缩解压程序，以及myzip.dll的详细文档。(Pb10 and with myzip.dll realize compression decompression procedures, as well as detailed documentation myzip.dll.)

2007-09-04 09:47:20下载

积分：1
GZIP解压例子
说明：利用gzip.dll解压http请求返回的内容。内附gzip.dll。参考网上资料自己写的VB6工程源码。自己编译EXE的时候注意把gzip.dll释放到exe所在目录。(Use gzip.dll to decompress the content returned by HTTP request. Gzip.dll is attached. Refer to the VB6 project source code written by myself.)

2020-06-22 07:00:02下载

积分：1
ya_shuo
一个可以简单的压缩小程序，是利用游程编码原理(One can simply compress small program is the use of run-length coding theory)

2014-12-18 14:06:52下载

积分：1
UNZIP
解压缩软件UNZIP的C源程序代码 The decompression software UNZIP C source code(The decompression software UNZIP C source code)

2013-03-26 09:36:09下载

积分：1
HuffMan
哈夫曼编码译码系统，设置发送者和接受者两个功能，发送者的功能包括： ①输入待传送的字符信息； ②统计字符信息中出现的字符种类数和各字符出现的次数（频率）； ②根据字符的种类数和各自出现的次数建立哈夫曼树； ③利用以上哈夫曼树求出各字符的哈夫曼编码； ④将字符信息转换成对应的编码信息进行传送。接受者的功能包括： ①接收发送者传送来的编码信息； ②利用上述哈夫曼树对编码信息进行翻译，即将编码信息还原成发送前的字符信息。 (Huffman decoding system, set the sender and the recipient of two functions, the sender' s features include: (1) input to be transmitted character information ② statistical character information, the number of types of characters and characters the number of occurrences (frequency create a Huffman tree) ② According to the number of types of characters and their respective number of occurrences ③ use the Huffman tree to find the characters Huffman coding ④ character information into the corresponding coding information for delivery. The recipient of the features include: (1) to receive the coded information to the sender transmission ② above Huffman tree coded information to be translated, is about to coded information to restore the character information before sending.)

2012-06-21 21:01:17下载

积分：1
tttt
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)

2011-08-09 01:14:58下载

积分：1

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SPIHT

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