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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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clsf_dpd_fast_3
Neighborhood rough set based feature evaluation and reduction
- 2009-03-27 02:18:21下载
- 积分：1
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work
说明： MATLAB环境下，一维小波分解并提取细节系数和近似系数，再加小波包分解信号(MATLAB environment, the one-dimensional wavelet decomposition and extract detail coefficients and approximation coefficients of wavelet packet decomposition of signal plus)
- 2010-04-12 16:14:58下载
- 积分：1
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基于KNN算法的鸢尾花分类代码
基于KNN算法的鸢尾花分类代码，可一直在matlab上运行。(Iris classification code based on the KNN algorithm, has been running in matlab.)
- 2020-06-27 07:20:02下载
- 积分：1
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STC_PID
含有未知参数的二阶系统的自校正PID控制(Self-correcting second-order system with unknown parameters PID control)
- 2014-09-11 21:17:37下载
- 积分：1
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seis-wave--moni
地球物理专业的地震波数值模拟程序，matlab编写，大家交流学习。。(Geophysics, seismic wave numerical simulation program, matlab prepared to share learning. .)
- 2013-04-08 13:47:06下载
- 积分：1
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backwardforward
power system particle swarm optimization
- 2011-09-12 14:10:36下载
- 积分：1
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MotionCompensationAndObjectDividion
对视频系列进行运动估计及对其中的运动目标进行分割获得运动对象。(Series of video motion estimation and target one of the sport was moving object segmentation.)
- 2009-02-28 18:41:36下载
- 积分：1
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xiaobo
人提供了一种小波去噪和小波包去噪的对比研究的matlab代码，供大家相互学习和参考(Provide a comparative study of wavelet de-noising and wavelet packet denoising matlab code for everyone to learn from each other and reference)
- 2014-03-06 10:44:25下载
- 积分：1
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ldatrace
LDATRACE Calculates an LDA transform to maximize trace discriminant
- 2009-03-05 16:25:13下载
- 积分：1
