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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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QPSKwumalvfangzhen
QPSK误码率仿真及星座图，仿真入门级。信号的调制译码(The Simulation and QPSK constellation, entry-level simulation. Decoding the signal modulation)
- 2011-05-11 22:13:24下载
- 积分：1
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myga
通用遗传算法模板，只需在各个部分改变变量就可以了(General genetic algorithm template, simply change the variable in the various parts can be a)
- 2011-06-06 03:08:02下载
- 积分：1
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DSSS1
基于matlab的直序扩频通信系统仿真模型(Matlab-based direct-sequence spread spectrum communication system simulation model)
- 2011-07-22 15:09:38下载
- 积分：1
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FFTPFIR
matlab与VC版本的FFT与FIR程序代码(FFT and FIR code written in both matlab and stand C)
- 2013-01-29 11:05:59下载
- 积分：1
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KapGRE
The rar file contains different sample tests for practice of gre exam.
- 2011-01-03 16:15:49下载
- 积分：1
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control_DC_MOTOR
control of dc motor
- 2012-05-11 06:59:08下载
- 积分：1
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Clock-calendar
一种时钟日历在matlab环境中的实现与实现的源码(Clock calendar)
- 2013-05-16 10:14:19下载
- 积分：1
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SphereLFOA
具有Levy飞行特征的foa算法,对果蝇优化算法的改进(Levy flight characteristics of foa algorithm)
- 2020-11-25 16:29:33下载
- 积分：1
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Mengtekaluo
蒙特卡罗算法方法的课件，自己看了感觉还行，请一起分享(Monte Carlo algorithm method courseware, their own feel good read, please share)
- 2010-09-08 17:14:11下载
- 积分：1
