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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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MATLABtongxinxitong
这些都是通信系统仿真与分析一书的源代码,希望对初学者有用,从基本的理论很好的用matlab进行了最基本的仿真(These are the communications system simulation and analysis of the source code of the book, I hope useful for beginners, from the basic theory of good use to the most basic matlab simulation)
- 2009-04-13 20:48:17下载
- 积分:1
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machinedataprocessing
basic operation in machine data processing
- 2010-08-03 00:09:01下载
- 积分:1
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Neural-Networks-road-traffic
BP神经网络公路运量预测
实例讲述如何在matlab中使用BP神经网络(BP neural network prediction road traffic)
- 2013-08-21 17:11:17下载
- 积分:1
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code
Matlab 常用图像处理,包括图像相除、相乘、灰度线性变换、图像增强、降噪(matlab Common image processing, including image division, multiplication, gray linear transformation, image enhancement, noise reduction)
- 2013-08-27 18:05:41下载
- 积分:1
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Digital_Image_Correlation_2010b
实现数字图像相关(DIC)方法的计算的Matlab代码(Matlab code for Digital image correlation (DIC) method)
- 2021-01-21 14:48:43下载
- 积分:1
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ga
说明: C语言实现遗传算法源程序,是参考某博士编的书上的源程序修改得来的(ga)
- 2010-07-30 14:18:50下载
- 积分:1
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pwm
SVPWM MODEL BASED ON MATLAB SIMULINK(SVPWM MODEL)
- 2009-06-12 16:39:40下载
- 积分:1
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MATLAB-handouts
清华大学信号与系统matlab应用课程讲义,谷源涛,共4讲(handouts for application of matlab in signal and system, tsinghua university)
- 2010-05-09 10:17:01下载
- 积分:1
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bosuxingchengsuanfa
数字波束形成算法库,超好,matlab源码(digital beamforming algorithms library, super-good, Matlab FOSS)
- 2007-01-24 09:47:21下载
- 积分:1