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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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sample9
绘制互相关信号,采用权向量和迭代次数求滤波器系数.(Drawing cross-correlation signal, weight vector and the iteration number for filter coefficients.)
- 2009-02-05 01:04:47下载
- 积分:1
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NDM
Newton下山法的计算程序,通过它可以求解复杂函数的根(Newton downhill method the computer program, through which can solve the root of complex functions)
- 2010-12-30 14:16:16下载
- 积分:1
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lyaprosen
计算给定时间序列的最大Lyapunov指数(compute the maximal Lyapunov exponent of a time series)
- 2010-03-15 09:45:47下载
- 积分:1
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LSMI
对角加载波束形成算法,可以解决协方差矩阵存在误差条件下的波束形成算法(diagonal loading beamforming)
- 2013-03-28 19:01:22下载
- 积分:1
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1111RVM
关联向量机,很好的工具箱,有用于分类和回归的例子(Relevance vector machine, a good toolbox, there are examples for classification and regression)
- 2013-12-06 12:08:39下载
- 积分:1
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New-folder
dtc of PMSM using SVPWM
- 2014-10-16 15:55:14下载
- 积分:1
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Financial_Time_series_analysis
精通matlab金融计算
Financial_Time_series_analysis in Matlab(Financial_Time_series_analysis in Matlab)
- 2010-06-16 11:41:34下载
- 积分:1
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hardy
solving a network of pipeline by the procedure of HARDY CROSS .
- 2011-01-06 16:56:46下载
- 积分:1
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B
说明: robost face detection
- 2011-03-04 18:31:13下载
- 积分:1