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jpeg_encode+decoderhojoon
This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
(This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
)
- 2009-09-17 13:07:04下载
- 积分：1
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ViterbiDec
viterbi译码算法的matlab源代码(viterbi decoding algorithm matlab source code)
- 2009-03-06 21:26:03下载
- 积分：1
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matlabandBP
说明： 一个MATLAB和BP算法的程序,对神经网络学习有帮助(matlab and bp)
- 2010-05-04 17:50:20下载
- 积分：1
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1.ER-WS_BA
ER,WS和BA网络模型生成算法的matlab实现(ER, WS and BA network model generation algorithm of matlab
)
- 2013-11-17 14:01:47下载
- 积分：1
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关联维数
分形维数处理声发射信号时间序列上的撞击率(Acoustic emission signal processing with fractal dimension)
- 2017-11-26 20:55:51下载
- 积分：1
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waveletconstruction
这是几个小波插值和构造的原程序，小波谱分析mallat算法经典程序 ， cubic_subdivision（立方插值）(several wavelet interpolation of the original structure and procedures to small spectral analysis algorithm Mallat classic procedures, cubic_subdivision (cubic interpolation))
- 2007-05-02 20:22:48下载
- 积分：1
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jixianquchu
对心电信号的基线消除，包含ECG信号和源代码，并在matlab中仿真，包含中值滤波，高通滤波，整系数滤波，和小波变换！都是一些简单的经典的方法(Elimination of baseline ECG, ECG signals and includes source code and simulation in matlab, including median filtering, high-pass filter, the filter with integer coefficients, and wavelet transform! Are some simple classical methods)
- 2013-11-27 20:37:36下载
- 积分：1
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qam16_DiscreteNewton
qam16位离散牛顿法数字预失真程序，经过测试能够正确完成，效果良好。(qam16 discrete Newton method digital pre-distortion and tested correctly to good effect)
- 2012-02-26 13:50:03下载
- 积分：1
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huffman_demo1
what about huffman coding matlab code
- 2010-09-01 02:51:52下载
- 积分：1
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bwt
The Burrows wheeler transform of matrix x, it will calculate the Burrows wheeler transform of the matrix a and will output the encoded signal with primary index value
- 2010-05-07 17:54:54下载
- 积分：1
