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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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DNA-sequencing-problems
DNA排序问题,其中包含了DNA排序的全部解决源代码并且附有说明(DNA sequencing problem, which contains the full DNA sequence and annotated source code to solve)
- 2011-06-19 00:41:33下载
- 积分:1
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zhuchengfengui
一个简单的基于MATLAB的GUI设计例子,适合初学者。(a simple GUI based on MATLAB design examples for beginners.)
- 2007-04-15 14:12:34下载
- 积分:1
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commmsk
This is a matlab file that is simulating minimum shoft keying signals. This is a simulink file and pulse shaping is also used in it.
- 2013-11-20 06:11:46下载
- 积分:1
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Solving-nonlinear-equations-with-Newtons-method
Kelley C.T. Solving nonlinear equations with Newton s method
- 2014-08-27 01:23:41下载
- 积分:1
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huffman
哈夫曼编码源程序,可以用于数据压缩的用处(Huffman source coding, data compression can be used for the usefulness of)
- 2007-10-08 11:16:22下载
- 积分:1
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Nakagamisim1
这是用matlab中的simulink仿真的Nakagami信道,对UWB研究者很有用。(This is in simulink with matlab simulation of Nakagami channel on UWB researchers useful.)
- 2009-03-12 11:35:17下载
- 积分:1
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Image forgery
this code is for image forgery detection
used to detect the changes made in the image
- 2010-09-14 18:52:38下载
- 积分:1
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SPWMinverter3P_Final
Consist of SPWM Generator. Three phase inverter with pulses.
- 2013-10-29 18:49:56下载
- 积分:1
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Quadratic-Programming
二次规划的matlab程序,希望对初学者有用( Quadratic Programming
)
- 2014-01-08 10:36:43下载
- 积分:1