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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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Extractionofthemaincomponents
Matlab提取主分量矩阵。程序设计步骤：
1、去均值
2、计算协方差矩阵及其特征值和特征向量
3、计算协方差矩阵的特征值大于阈值的个数
4、降序排列特征值
5、去掉较小的特征值
6、去掉较大的特征值(一般没有这一步）
7、合并选择的特征值
8、选择相应的特征值和特征向量
9、计算白化矩阵
10、提取主分量()
- 2008-07-01 20:04:50下载
- 积分：1
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TaskChart
说明： TaskChart用于一个作计划排列的控件！可以动态的调整计划(TaskChart for a planned with the controls! Dynamically adjustment plan)
- 2006-03-29 21:36:03下载
- 积分：1
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6100010GallagerH
用matlab 生成规则的LDPC码的校验矩阵H(Matlab to generate regular LDPC code check matrix H)
- 2021-04-09 14:58:59下载
- 积分：1
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LAMPIRAN-3
SFN MFN BER with Matlab
- 2015-03-05 11:50:10下载
- 积分：1
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RBF-neuro-network
Radius Basic Function 神经网络的预测程序(Radius Basic Function neural network prediction program)
- 2011-10-17 17:11:51下载
- 积分：1
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maximize-profit
养殖问题中的收益最大化问题 以及 灵敏度的检验(maximize the profit in cultivation)
- 2013-11-15 17:33:45下载
- 积分：1
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Large-sacal-MIMO
本程序是关于大规模MIMO的一个简单程序，很容易懂。用仿真结果。(This procedure is a simple procedure for large-scale MIMO, it is easy to understand.)
- 2015-11-03 16:35:59下载
- 积分：1
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chapter6
于慧敏信号与系统第二版第六章部分习题的matlab代码... (In the second edition of the system Huimin Xin No. Part VI Exercises matlab code ...)
- 2010-06-04 11:02:20下载
- 积分：1
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DPSK-modulation
本程序实现了差分相移键控(DPSK)的调制与解调，得到了眼图。(This program simulates the Differential Phase Shift Keying(DPSK)system to obtain a eye diagram.)
- 2014-01-15 19:40:29下载
- 积分：1
