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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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timedelay
说明： 捷联惯导系统传递对准MATLAB程序，加时间延迟，但是不进行补偿。(SINS Transfer Alignment MATLAB procedures, plus time-delay, but not be compensated.)
- 2008-09-18 16:20:28下载
- 积分：1
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matlab5
利用matlab进行频域低通和带通滤波,效果不错(Frequency domain using matlab low-pass and band-pass filtering)
- 2013-09-15 10:48:39下载
- 积分：1
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plsr
应用matlab自带函数进行片最小二乘回归建模(Application of matlab with function least-squares regression modeling)
- 2013-12-23 12:21:23下载
- 积分：1
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MATLAB_Wavelet_analysis
张德丰《MATLAB 小波分析》光盘源代码(Zhang Defeng " MATLAB wavelet analysis," the source code CD-ROM)
- 2010-07-08 22:43:24下载
- 积分：1
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bpsk
bpsk 调制和解调
BPSK调制解调直接序列扩频系统源代码(白噪声及瑞利衰落误码率比较)(communication simulation programming source)
- 2021-04-07 16:19:01下载
- 积分：1
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chap2
求数组中最大的一个元素，给出了最简单的一个实例，应运时之需要改变数字即可(calculator the max one)
- 2009-05-10 20:40:09下载
- 积分：1
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srg11
开关磁阻电机驱动matlabsimulink模型，希望大家给意见 (Switched reluctance motor driver matlab/simulink model, hope everybody to give advice
)
- 2021-03-06 20:49:30下载
- 积分：1
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Untitled
这是一个关于线性调频信号的产生以及其频谱分析的代码(This is a chirp signal generation and its spectrum analysis code)
- 2014-11-08 22:09:14下载
- 积分：1
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fitcircle
根据像素点进行圆匹配。根据像素点进行圆匹配。(According to the pixel round match. According to the pixel round match.)
- 2012-05-19 21:53:41下载
- 积分：1
