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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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log5pitch-myExcelWrite
log5pitch : 将Hz为单位的基频转换为五度标记法规定的声调,先传入四个声调的基频,然后输出四个声调的五度值
myExcelWrite : 用matlab向Excel表单中写入内容(log5pitch: the fundamental frequency in Hz is converted to five times the tone mark law, passed in the first four tones of the fundamental frequency, then the output value of four tones of the five degrees myExcelWrite: using matlab to write content to an Excel spreadsheet)
- 2011-10-09 16:59:40下载
- 积分:1
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haralickfeat
This is code for Haralick feature extraction for image in matlab. The basis for these features is the gray-level co-occurrence matrix. This matrix is square with dimension Ng, where Ng is the number of gray levels in the image. Element [i,j] of the matrix is generated by counting the number of times a pixel with value i is adjacent to a pixel with value j and then dividing the entire matrix by the total number of such comparisons made.
- 2013-10-01 21:03:21下载
- 积分:1
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svpwm_model
说明: 永磁同步电机(PMSM)SVPWM 算法的建模与仿真(Modeling and simulation of PMSM SVPWM algorithm)
- 2020-02-19 21:14:49下载
- 积分:1
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KM
说明: 图论中KM算法程序子程序,进行最优匹配,可解决分配问题(KM algorithm in graph theory)
- 2020-04-22 05:25:10下载
- 积分:1
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dispatch
lambda iteration method for dispatch
- 2011-06-01 14:59:08下载
- 积分:1
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Pattern-Recognition-2nd-Ed.-(2009)
A Practical Step by Step Speech Recognition System
Good for both beginners and Experts. Codes are discuss too
- 2013-11-17 23:18:50下载
- 积分:1
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sizhongshuxingjiaohu
地震属性信息包含了丰富的信息,地震属性种类繁多,程序里包含了四种常用的地震属性(Seismic attribute information contains a wealth of information, a wide range of seismic attributes, the program includes four commonly used in seismic attributes)
- 2010-07-14 09:34:08下载
- 积分:1
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BPSK_Simulation_for_AWGN_Rayleigh_Channels
BPSK SYSTEM SIMULATION
We simulate the generation of random variables r0 and r1, which constitutes the input to detector.The detector output is compared with the binary transmitted sequence and an error counter is used to count the number of bit errors.
(BPSK We simulate the gen Kearney of random variables r0 and r1. which constitutes the input to detector.The de tector output is compared with the binary trans mitted sequence and an error counter is used to c been the number of bit errors.)
- 2006-06-20 04:25:43下载
- 积分:1
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MATLAB-image
这是matlab图像处理的资料,里面主要是图像处理的常用函数介绍,很全面(This is the Matlab image processing information, which is commonly used in image processing functions, the very comprehensive)
- 2007-05-29 09:52:34下载
- 积分:1