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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.
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- 2009-09-17 13:07:04下载
- 积分：1
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OFDMPAPR
实现降低OFDM的峰均比的源代码，包括SLM PST算法。(OFDM PAPR reduction achieved in the source code, including SLM PST algorithm.)
- 2009-11-03 16:16:37下载
- 积分：1
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WhiteNoise_series
白噪声序列产生maltab源代码，研究白噪声的功率谱密度(The white noise sequence generated maltab source code, research white noise power spectral density)
- 2012-09-01 19:36:44下载
- 积分：1
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Lightout
In this we analyze the light out game with matlab.(Linear Algebra analyzing on Lights Out Game )
- 2014-01-06 06:49:49下载
- 积分：1
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Satellite
卫星云图查看源码，实现了每半小时获取卫星图，获取云图列表，可自动播放，有两种选择(View satellite images realized every half hour to obtain satellite images, access cloud list, you can automatically play, two options.)
- 2015-01-15 21:31:06下载
- 积分：1
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wavemarksvd
利用svd的一种水印方法。SVD即奇异值分解(Singular Value Decomposition)算法。
(A watermarking method using svd. Singular value decomposition SVD that (Singular Value Decomposition) algorithm.)
- 2009-09-18 10:42:33下载
- 积分：1
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Gauss-Jordan-Matrix
For inverting a matrix, Gauss-Jordan elimination is about as efficient as any other method. For solving sets of linear equations, Gauss-Jordan elimination produces both the solution of the equations for one or more right-hand side vectors b, and also the matrix inverse A(-1). However, its principal weaknesses are (i) that it requires all the right-hand sides to be stored and manipulated at the same time, and (ii) that when the inverse matrix is not desired, Gauss-Jordan is three times slower than the best alternative technique for solving a single linear set.
- 2012-03-29 00:57:43下载
- 积分：1
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677676767
虚拟频谱分析仪。vi可以好好的学习参照设计(Virtual spectrum analyzer. vi)
- 2011-05-12 14:26:02下载
- 积分：1
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random-experient
在给定条件下对低通滤波器和高通滤波器的matlab仿真，通过有和没有噪声情况下的对比，观察波形(Under the given conditions the low-pass filter and high pass filter matlab simulation, with and without noise by comparison of the case, observe the waveform)
- 2011-10-26 10:05:17下载
- 积分：1
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supercontinuum
关于拉曼光纤激光器超连续谱的仿真程序，欢迎大家下载楼！(this is about supercontinue spectrum.)
- 2021-04-12 15:28:57下载
- 积分：1
