01-Biometrics-Lecture-Part1-2008-09-15

Bai tap dien dai hoc cong nghe

说明：  对声音中的杂音进行过滤，并在新的文件夹中 自动保存(Murmur of voices in the filter, and in the new folder automatically saved)

viterbi algorithm in Hidden Markov Model

说明：  gaussseidalmatlab programme

decription system photo

this program describes the spatial domain technique for the watermarking and finds out different parameters

一款基于matlab的ccd成像系统的研究，作为毕业设计常出现的题目，对毕业生很有帮助(A ccd imaging system based on matlab' s research, often appear as the subject of graduation, the graduates helpful)

matlab视频处理书籍，详细介绍了matlab下的视频处理(matlab video process)

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. )

parzen 窗函数 对样本进行有效分类(parzen—window function)