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rgbquadtreehojoon
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 14:52:16下载
- 积分：1
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project1
serial port communication
- 2011-01-16 14:37:23下载
- 积分：1
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myfgs
matlab仿真出光栅的夫琅禾费衍射，其中有四副图，原图，二维衍射图样，函数图象和三维衍射图样(matlab simulation of a grating of Fraunhofer diffraction, which has four maps, original, two-dimensional diffraction patterns, functions, images and three-dimensional diffraction pattern)
- 2011-05-15 16:41:51下载
- 积分：1
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Desktop
说明： 利用MATLAB求解偏微分方程的有限差分法算例，可自行编写方程求解，只需更换方程即可。(Finite difference method for solving one-dimensional parabolic equation)
- 2019-04-18 11:12:00下载
- 积分：1
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rect_qpsk
qpsk的方波滤波，利用matlab编写M文件，调试成功，并描绘滤波图形。(the qpsk square wave filter using Matlab prepared M-file debugging success, and a description of the filter graphics.)
- 2012-04-24 21:08:02下载
- 积分：1
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dbf_mvdr
最小方差无畸变响应波束形成器，MVDR算法源码(The minimum variance distortionless response beamformer，MVDR algorithm source
)
- 2012-06-05 22:43:54下载
- 积分：1
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junyun_rand_ps_zAxis_4s
光子筛孔分布的例程，环数相同，用于光子筛成像时使用(Photon sieve distribution routines same ring number, is used for imaging photon sieve)
- 2013-10-14 20:04:05下载
- 积分：1
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MATLABDOCUMENT
一些关于matlab的技术文档，对使用matlab的人，有很大的帮助(Matlab on the technical documentation, on the use of matlab who have great help)
- 2007-09-09 19:42:04下载
- 积分：1
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Turbocodes
Turbo coding toolbox in MATLAB
- 2009-03-14 11:43:49下载
- 积分：1
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Convolution-decode-
实现了卷积码（2,1,3）编码以及解码的功能，已验证通过(Achieved (2,1,3) convolutional encoding and decoding functionality code validated by)
- 2014-08-21 09:09:32下载
- 积分：1
