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huffman_coding
) Compression using huffman code
-with a number of bits k per code word
-provide huffman table
Huffman coding is optimal for a symbol-by-symbol coding with a known input probability distribution.This technique uses a variable-length code table for encoding a source symbol. The table is derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol .Huffman coding uses a specific method for representing each symbol, resulting in a prefix code that expresses the most common characters using shorter strings of bits than those used for less common source symbols.The Huffman coding is a procedure to generate a binary code tree.
() Compression using huffman code
-with a number of bits k per code word
-provide huffman table
Huffman coding is optimal for a symbol-by-symbol coding with a known input probability distribution.This technique uses a variable-length code table for encoding a source symbol. The table is derived in a particular way based on the estimated probability of occurrence for each possible value of the source symbol .Huffman coding uses a specific method for representing each symbol, resulting in a prefix code that expresses the most common characters using shorter strings of bits than those used for less common source symbols.The Huffman coding is a procedure to generate a binary code tree.
)
- 2009-04-04 22:16:39下载
- 积分：1
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matlab06-07
这两个小程序是matlab的.m文件，06为采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波，07采用matlab中的函数filter2对受噪声干扰的图像进行均值滤波。(these two small procedure is Matlab. M documents, 06 for 2D median filtering function medfilt2 right by the Salt and Pepper image noise filtering, 07 using Matlab filter2 the function of noise interference by the image filtering.)
- 2007-04-23 19:25:30下载
- 积分：1
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Watermarking
It consists of 2 images input and watermark image.The aim of the program is th hide watermark image within input image.The last 4 digits of the input image are replaced by first 4 bits of the input image.The output image appears like input image but watermark image will be embedded inside.
- 2014-11-11 18:07:40下载
- 积分：1
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match
《图像配准技术及其Matlab编程实现》一书的Matlab源码，有点检测、线检测、Hough变换、遗传算法、蚁群算法、Powell算法和插值算法等。("Image Registration and Matlab programming," a book of Matlab source code, a bit detection, line detection, Hough transform, genetic algorithm, ant colony algorithm, Powell algorithm and the interpolation algorithm etc.)
- 2021-04-02 15:29:07下载
- 积分：1
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fixed_point_aitken
general fixed point iteration with Aitken s D2-method
- 2010-02-08 16:11:31下载
- 积分：1
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exm1001_1
北航张志勇编的matlab绘图程序，可作为初学者的参考(series of the Beijing University of Aeronautics and Astronautics Zhang Zhiyong Matlab mapping procedures, can be used as a reference beginners)
- 2006-08-18 00:05:53下载
- 积分：1
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package_emd
package_emd,非常重要的工具箱，用于EMD的数字信号分解(package_emd, a very important kit for digital signal decomposition EMD)
- 2010-05-12 18:03:14下载
- 积分：1
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Hyd_Spring
hydraulic spring
- 2011-02-03 16:17:14下载
- 积分：1
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DS_CDMA_communication_system
这个仿真程序用于实现DS-CDMA通信系统仿真(The simulation program used to implement DS-CDMA Communication System Simulation)
- 2010-05-13 09:27:41下载
- 积分：1
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mimo_waterfilling
>*********************************************************************
>This program works with "capacity_plot_main.m" file.Figs
>2.6,2.7,2.9,2.12 are determined using this program
>SNR is signal-to-noise ratio in dBs
>M -> number of antennas (M x M) system
>corr -> 1 if with correlation, 0 if uncorrelated (for a 2x2 system only)
>value -> correlation coefficient value from 0 ->1
>XPD -> 1 if antenna XPD is to be investigated, 0 if not (for a 2x2 system
>only)
>alpha -> XPD value
>output -> defined by erg and out for ergodic capacity or outage
>capacity respectively (>*********************************************************************
>This program works with "capacity_plot_main.m" file.Figs
>2.6,2.7,2.9,2.12 are determined using this program
>SNR is signal-to-noise ratio in dBs
>M-> number of antennas (M x M) system
>corr-> 1 if with correlation, 0 if uncorrelated (for a 2x2 system only)
>value-> correlation coefficient value from 0->1
>XPD-> 1 if antenna XPD is to be investigated, 0 if not (for a 2x2 system
>only)
>alpha-> XPD value
>output-> defined by erg and out for ergodic capacity or outage
>capacity respectively )
- 2011-05-12 15:40:44下载
- 积分：1
