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jpeg2avihojoon
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 13:05:51下载
- 积分:1
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matlab_MPSK
matlab实现,多进制数字调制,相移键控(matlab realize, M-ary digital modulation, phase shift keying)
- 2008-05-20 19:33:39下载
- 积分:1
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ant
基于MATLAB的蚁群算法 可以应用于协作通信的伙伴选择中(MATLAB-based ant colony algorithm can be applied to partner selection in cooperative communication
)
- 2011-05-08 16:21:19下载
- 积分:1
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DTC
异步电动机数量控制完整仿真模型,可以根据实际情况写该参数,达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)
- 2013-12-17 13:00:49下载
- 积分:1
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snr_estimate_M2M4_QPSK
采用M2M4信噪比估计算法对QPSK调制解调器的接收端信噪比进行了估计(M2M4 SNR estimation algorithm on the the QPSK modem receiving end signal-to-noise ratio estimated)
- 2013-05-08 08:55:05下载
- 积分:1
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example-2.29-1.0.0.tar
LIBRARY ZIGBEE WIRELESS SENSORS
- 2010-02-09 22:36:39下载
- 积分:1
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AttributedPlotHtmlsam
This exchange file creates a clickable image map for a figure with links to multiple data sources
- 2013-08-18 03:53:37下载
- 积分:1
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Adaptive-learning-dictionary
自适应学习字典代码:训练字典的MATLAB仿真程序,能够很好的认识字典训练事例
(Adaptive learning dictionary code: dictionary MATLAB simulation training, can very good dictionary training examples
)
- 2013-08-24 12:56:21下载
- 积分:1
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FAST-AUTOCORELATION
the fast autocorelation function matlab code, used for basicallly pitch extraction and thus is extremely useful
- 2013-10-21 20:40:55下载
- 积分:1
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rake-simulation
CDMA系统Rake接收误比特率模拟程序,链路级各个模块均包括,有详细的程序注释。(Rake receiver CDMA system BER simulation program, each module includes link-level, detailed program notes.)
- 2013-11-29 19:54:19下载
- 积分:1