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rgbquadtreehojoon
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.
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- 2009-09-17 14:52:16下载
- 积分：1
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AES17-FB.ps
matlab wave matlab wave matlab wave matlab wave
- 2009-04-23 23:33:22下载
- 积分：1
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KsQuantile
利用正态分布和核密度估计计算分位数。包括正态分布分位数函数、核估计概率密度函数、核估计累计分布概率函数、核估计计算分位数函数。(Normal and kernel density estimation using sub-digit calculation. Including the normal quantile function, kernel estimate probability density function, cumulative distribution probability function kernel estimation, kernel estimate calculated quantile function.)
- 2010-12-02 09:19:09下载
- 积分：1
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xiaobobianhuan
连续小波变换程序算例 新手可以用来参考参考(Continuous wavelet transform procedures for novice operator can be used to refer to refer to cases of)
- 2010-03-15 15:15:37下载
- 积分：1
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Ackley
Not mine code, but very usefull!
- 2013-10-24 20:38:04下载
- 积分：1
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filter-design
IIR和FIR滤波器的设计，用脉冲响应不变法和双线性变换法设计IIR滤波器，用窗函数法设计了FIR滤波器。(IIR and FIR filter design, with the impulse response method and the bilinear transform IIR filter design using window function design of the FIR filter.)
- 2013-10-24 21:23:13下载
- 积分：1
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4Reconstruction-Filter-Bank
4Almost Perfect Reconstruction Filter Bank for Non-redundant hosseini_ complex wavelet_06_5045[1]
- 2014-11-19 15:03:05下载
- 积分：1
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GaussianNoise_LognormalNoise
GaussianNoise & LognormalNoise
- 2013-04-30 21:04:49下载
- 积分：1
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sound
使用MATLAB语言编写的声音报警程序，用于监测(use MATLAB language编写的声音报警程序，用于监测)
- 2016-05-30 21:55:49下载
- 积分：1
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pro_bhp
this is one of the best satelite code in the world to find the look angle
- 2013-08-23 12:03:07下载
- 积分：1
