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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.
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- 2009-09-17 13:07:04下载
- 积分:1
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RAYLEIGHFADINGMODELGENERATIONwithcodin
RAYLEIGH FADING MODEL GENERATION
- 2010-08-12 01:15:21下载
- 积分:1
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CEPSC_COM
考虑风电的FTR拍卖模型研究论文基于蒙特卡罗模拟的遗传算法源程序(Consider the wind power of FTR auction model based on Monte Carlo simulation studies of the genetic algorithm source code)
- 2009-04-30 12:53:30下载
- 积分:1
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shenjingwangluo
该程序是用小波函数构建神经网络的源程序。用以分析心电信号、脑电信号等等。(that the procedure was constructed using wavelet neural network function of the source. For the analysis of ECG, EEG, and so on.)
- 2007-07-08 11:15:04下载
- 积分:1
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L6565
Quasi Resonant SMPS Controller I C
- 2010-07-19 03:51:16下载
- 积分:1
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Face_Recognition
it is a program to verify the persons depend on his own face
- 2010-07-23 02:17:44下载
- 积分:1
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nnrbf_pid
基于RBF神经网络整定PID simulink模型中的S函数,希望对大家有帮助
- 2012-05-27 19:22:59下载
- 积分:1
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Matlab_application_tutorial
matlab基础及其应用教程matlab基础及其应用教程(matlab)
- 2010-12-12 16:22:32下载
- 积分:1
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edge_betweenness
复杂网络社区发现中,用于计算边介数的代码。(Complex network of community found in the code for edge betweenness calculation.)
- 2014-05-08 10:42:31下载
- 积分:1
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extract
code for object extraction to exatrct name plate
- 2010-07-22 17:28:02下载
- 积分:1