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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.
)
- 2009-09-17 14:52:16下载
- 积分:1
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Interpolation-Integration
Interpolation-spline/polynomial interpolation example.
Integration-integration using trapezoidal rule (equally spaced data)
- 2010-11-16 17:59:20下载
- 积分:1
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数字信号处理1
matlab有关数字信号处理方面的程序,希望能够给大家一点帮助。(Matlab the digital signal processing procedures, hoping to give us some help.)
- 2005-07-08 17:22:06下载
- 积分:1
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shengtai2
对森林生态系统的动力学仿真很有用的东西值得大家学习学习(On the forest ecosystem dynamics simulation is useful to learn something worth learning)
- 2011-04-23 23:00:32下载
- 积分:1
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tftb-0.2
时频分析工具箱,需要的人可以试试,还不错(time-frequency analysis toolkit, the people can try out, quite good)
- 2007-03-10 10:58:51下载
- 积分:1
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QAM16
这一段代码是基于matlab的仿真编程,主要是针对16QAM的调制,代码及其仿真结果无不从各个方面详细分析了技术原理。(This piece of code is based on the Matlab simulation programming for 16QAM modulation, code and its simulation results are all from the various aspects of a detailed analysis of the technical principles.)
- 2013-04-27 12:15:45下载
- 积分:1
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MODE-master
说明: 差分进化算法python实现
比较简单啊啊啊啊啊啊(Differential evolution algorithm)
- 2020-05-16 20:29:10下载
- 积分:1
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process
peak filter design for audio signal
- 2010-11-22 04:45:43下载
- 积分:1
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CS_OMP
OMP算法的MATLAB实现,实验信号为X,为一模拟信号,通过正交匹配跟踪算法来实现信号的重构。(OMP algorithm of MATLAB, and experimental signal for the X, for analog signals, orthogonal matching pursuit algorithm for signal reconstruction.)
- 2010-05-05 15:07:39下载
- 积分:1
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Cholesky
数值分析中基于Matlab环境下的关于Cholesky分解的源代码(Numerical analysis environment based on Matlab source code for the Cholesky decomposition)
- 2011-06-17 08:44:37下载
- 积分:1