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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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imagerestoration
图像复原
退化模型
连续退化模型
离散退化模型
复原的代数方法
代数复原原理
逆滤波复原
最小二乘方滤波
MATLAB 实现图像复原
维纳滤波复原
规则化滤波复原
Lucy-Richardson 复原
盲去卷积复原
图像复原的其它 MATLAB 函数 (Degradation of image restoration model continuous degradation model discrete degradation model recovery principles of algebra algebraic inverse filter to recover to recover MATLAB least squares filtering for image restoration Wiener filter to recover the rules-based filtering to recover Lucy-Richardson deconvolution to recover Blind Image Restoration to recover the other MATLAB Functions)
- 2009-12-23 12:12:34下载
- 积分:1
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在opnet软件平台上对无线通信进行了建模仿真 Lab
在opnet软件平台上对无线通信进行了建模仿真,对于学习opnet的无线管道建模有很大的参考价值(Opnet software platform in the wireless communications on the modeling and simulation, learning opnet modeling of wireless channels has great reference value)
- 2010-12-24 20:28:55下载
- 积分:1
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maxeandzishiying
说明: 通过最大熵和自适应灰度阈值方法来对图像进行分割,可得到效果较好的分割图像(By maximum entropy and the adaptive threshold method of image segmentation, image segmentation can be obtained better)
- 2011-03-30 19:32:38下载
- 积分:1
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Numerical-solution-of-differential-equation-and-Ma
常微分方程数值解及其MATLAB实现,包含了数学原理,算法和程序。(Numerical Solution of Ordinary Differential Equations MATLAB implementation, including the mathematical principles, algorithms and procedures.)
- 2010-05-27 23:42:39下载
- 积分:1
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xuanmingzufeng
信号与系统中的音乐合成实验,用matlab合成的曲子。(Signals and Systems in music synthesis experiments using matlab synthesized music.)
- 2013-11-18 15:14:35下载
- 积分:1
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wavelet
小波插值与小波构造的程序,包括3个程序,有均值插值和细分插值(Wavelet interpolation and wavelet construction procedures, including three procedures, have the mean interpolation and interpolation subdivision)
- 2007-10-10 16:35:44下载
- 积分:1
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guanlianweishu
这是求分形关联维数的另一个MATLAB程序,希望对大家有用(This is for the fractal correlation dimension, another MATLAB program, and they hope U.S. Useful)
- 2007-10-21 14:02:16下载
- 积分:1
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Applied.Quantum.Mechanics.2nd.ed
一本很好的matlab学习书籍,综合了很多的内容,英文版的,对英文又要求( Matlab learning good book, synthesized a lot of content, the English )
- 2013-01-08 01:28:08下载
- 积分:1
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lac
自己编写的有限元计算程序中生成LA矩阵的模块(genarate LA Matrix)
- 2011-06-07 23:50:32下载
- 积分:1