MATLAB

说明：  This mfile change the place of a picture that included of 4 pictures that they are in it.

说明：  计算机视觉中基本矩阵F估计的matlab程序，很有用(F fundamental matrix in computer vision estimates matlab program, very useful)

embeding a bitmap image to audio file

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. )

说明：  基于MATLAB软件下的小波变换代码，实现小波变换对图片的压缩处理(MATLAB software based on wavelet transform under the code, the realization of wavelet transform for image compression)

comparision of transforms

正交信号，反相信号，开关信号的蒙特卡洛仿真(Quadrature signal, inverting the signal Monte Carlo simulation of the switching signal)

说明：  详细的双馈发电机模型，包括变桨系统、偏航系统、控制系统、齿轮箱等。(Detailed model of doubly-fed generator, including the pitch system, yaw system, control system, gear boxes.)

用matlab编写的求解10城市、31城市、70城市的TSP蚁群算法，供大家学习只用，算法简洁明了，注释全，易理解。(Using matlab to solve 10 cities, 31 cities, 70 cities TSP ant colony algorithm, only for them to learn the algorithm concise, notes the whole, easy to understand.)

Okumura analyzed path-loss characteristics based on a large amount of experimental data collected around Tokyo, Japan. He selected propagation path conditions and obtained the average path-loss curves under flat urban areas. Then he applied several correction factors for other propagation conditions, such as: Antenna height and carrier frequency Suburban, quasi-open space, open space, or hilly terrain areas Diffraction loss due to mountains Sea or lake areas Road slope Hata derived empirical formulas for the median path loss (L50) to fit Okumura curves.