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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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Grabisch_FuzzyIntegral
matlab _ fuzzy_integral
- 2013-10-24 22:29:43下载
- 积分:1
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classic-spectrum-estimation
各种经典谱估计的方法,都 是调试好的 ,非常好用。大家都 下载(Classical spectrum estimation, a variety of methods have, very easy to use)
- 2016-03-23 19:06:15下载
- 积分:1
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fdtd_bmp
Analysis beam propagration using Finite Difference Beam Propagation Method (Analysis beam propagration using Finite Difference Beam Propagation Method)
- 2007-08-25 14:19:49下载
- 积分:1
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plot_hht
emd算法,详细英文注释,程序能现实IMF各次图形(emd algorithm, in English, can realistically IMF various graphics)
- 2010-02-03 19:46:02下载
- 积分:1
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UnmannedWSN
Unmanned based Wireless WSN
- 2012-09-21 20:20:20下载
- 积分:1
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chapter6_1
此程序的功能是用自相关法求使信号s均方预测误差为最小的预测系数 (Feature of this program is to use the autocorrelation method for the signal s smallest mean squared prediction error of prediction coefficients)
- 2013-11-25 20:31:34下载
- 积分:1
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matlab_08_talk10
matlab学习资料,对绘图有疑惑的同学有帮助,谢谢(matlab learning materials, students of the drawing in doubt helpful, thank you)
- 2010-10-16 10:07:22下载
- 积分:1
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matlab-test
这些是信号与系统中用到matlab的各种那个仿真实例,可用作编程中的现成模板。(These are the signals and systems used in all the simulation matlab, ready-made templates can be used as programming.)
- 2010-05-06 17:31:08下载
- 积分:1
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RAYLEIGH
Code for OFDM with matrix interleaving in modulation Bpsk, Qpsk, 16/32/64 Qam.
- 2013-03-29 17:38:01下载
- 积分:1