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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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heartFFT
fast fourier transform of heart sound
- 2011-01-09 21:35:21下载
- 积分：1
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Time-Hopping-UWB
TH-PPM-UWB的simulink仿真框图以及各个部分的S函数(TH-PPM-UWB in the simulink simulation block diagram and various part of the S function)
- 2021-03-22 14:29:16下载
- 积分：1
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kpr_grad
是宏观经济学里面很重要的kpr算法的matlab程序，在数值模拟算法中应用非常广泛(Macroeconomics, which is very important kpr algorithm matlab program, the numerical simulation algorithm is widely used)
- 2011-06-14 17:21:11下载
- 积分：1
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AntColonyOptimization
This source code is about the ant colony optimization.How ants are getting food the nest to food source with shortest path route.
- 2014-10-17 14:05:57下载
- 积分：1
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Matlab
matlab 经典教程 从入门到精通 实例讲解 非常经典 值得收藏(matlab classic tutorial on the very classic examples from entry to the proficient worth collecting)
- 2013-12-16 15:12:02下载
- 积分：1
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Floyd
Floyd算法适用于APSP(All Pairs Shortest Paths)，(APSP(All Pairs Shortest Paths)，)
- 2010-07-19 22:07:39下载
- 积分：1
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netcheck
海明码发送与接收程序 测试信道的可靠性 可单独设立监听端口(Hamming code to send and receive testing the reliability of channel can be set up to monitor a separate port)
- 2007-12-18 15:02:09下载
- 积分：1
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ContrlSysSim_zx
中国石油大学张欣老师的 控制系统仿真 的学习教程。包括ppt及matlab程序。(China University of Petroleum teacher Zhang control system simulation tutorials. Including ppt and matlab program.)
- 2015-04-05 09:25:45下载
- 积分：1
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visiblewmk
说明： 在图像中加入可视水印，用matlab仿真，实验证明保持了较好的图像质量(in adding visual image watermarking using Matlab simulation experiment to prove that maintaining a good image quality)
- 2006-05-16 18:04:40下载
- 积分：1
