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jpeg2avihojoon
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 13:05:51下载
- 积分:1
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zhu3ci3compare
在认知网络下的干扰对齐算法的MATLAB代码(In the cognitive network interference alignment algorithm MATLAB code)
- 2014-10-14 19:52:48下载
- 积分:1
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prim
利用Matlab编写构造最小生成树的Prim算法,程序注释清晰,通俗易懂。(Minimal Spanning Tree-- Prim)
- 2013-09-21 21:59:01下载
- 积分:1
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bzs
m序列带有白噪声干扰的的脉冲系统系统自相关函数误差分析(pulse system,M sequence, white disturbance)
- 2013-05-06 01:14:54下载
- 积分:1
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houghcir2
hough变换圆检测,设置三个阈值,根据三个不同的半径检测圆的边缘(hough transform circle detection)
- 2015-03-26 16:13:20下载
- 积分:1
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RLS
自适应波束行成——最小二乘法,根据得到的波束图判断到达波的方向(Adaptive beam-line- on the least square method, according to the obtained beam pattern to determine the direction of wave)
- 2010-11-04 21:20:09下载
- 积分:1
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EntropyWeight
熵权法求指标权重,R为输入矩阵,返回权重向量weights(Entropy weight method)
- 2020-12-30 14:58:59下载
- 积分:1
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Intrecog
基于数字形态学的字符识别
recognizes the characters (in integer form) present in the image X and displays it as output. INTREC uses morphological operations(like
(Based on the number of morphological character recognition recognizes the characters (in integer form) present in the image X and displays it as output. INTREC uses morphological operations (like)
- 2007-11-14 12:23:27下载
- 积分:1
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Least_square_disp
本程序使用matlab编写,采用非加权最小二乘法进行相位展开,得到展开的相位(This program is written by matlab。 using the method of non-weighted least squares, the phase would be unwrapped)
- 2010-12-11 21:21:32下载
- 积分:1
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Multi-path-Doppler-effect-notes(with-matlab-progra
多径多普勒效应讲义(含matlab程序)(Multi-path Doppler effect notes (with matlab program))
- 2010-12-27 18:53:19下载
- 积分:1