pso_chen

说明：  对sinc函数进行内插后的误差比较（matlab）(Of the sinc function interpolation error after the comparison (matlab))

增广最小二乘的递推算法对应的噪声模型为滑动平均噪声，扩充了参数向量和数据向量H（k）的维数，把噪声模型的辨识同时考虑进去。最小二乘法只能获得过程模型的参数估计，而增广最小二乘法同时又能获得噪声模型的参数估计，若噪声模型为平均滑动模型，，则只能用RELS算法才能获得无偏估计。当数据长度较大时，辨识精度低于极大似然法。(Augmented least squares of recursion algorithm corresponding noise model for moving average noise, expanded parameter vector and data vector H (k) of the dimension, the noise model identification and at the same time into consideration. Least square method can only obtain process model parameter estimation, and augmented least squares method at the same time can obtain noise model parameter estimation, if noise model for the average sliding model,, it can only use RELS algorithm to obtain unbiased estimation. When the data length is bigger, the identification accuracy is lower than maximum likelihood method.)

converted ga matlab code to c++ for solving scheduling problem

this file is for newcomers to learn matlab programming

说明：  用matlab编写的bupatest程序，希望对大家有所帮助(Prepared using matlab bupatest procedures, we want to help)

mammograms Segmentation for detection of masses breast

采用小波分析方法对一维信号进行噪声滤除，比较经典(wavelet de-noise)

利用LSB算法去实现了电子水印技术。代码完全实现了嵌入以及提取， 算法同时包含了4种攻击算法以及利用psnr测量提取的水印和攻击后提取的水印(This algorithm describes digital watermark technique by using LSB. This code implement embedding and extraction. At the meanwhile, this algorithm includes 4 different kinds of attacks and in the end, measure psnr between extracted watermark and attacked extracted watermark)

remove noise frome multiple noisy images by mean operation

使用邻域平均法、中值滤波法、K邻近平均法进行平滑。 利用Roberts梯度法、Sobel算子和拉普拉斯算子进行锐化，并比较结果。 (smooth and sharpen)