PSOwithfunction

fitting an elips using matalb

MATLAB实现多属性目标决策选择，从而选择最优的决策(MATLAB to achieve multi-attribute objective decision making the choice to select the optimal decisions)

利用最速下降法计算最小曲面的面积，初始条件为0，边界条件为正方形固定边界。(Using steepest descent method to calculate the minimum surface area. Initial condition is 0, while boundary condition is square fixed values.)

五种常用的粒子滤波算法，里面有ekf算法的比较 欢迎大家下载学习，含注释(five kinds of pf filter. it will help you to study pf filter.)

说明：  中值滤波，形态学处理，对图像进行预处理，用的是中值滤波，形态学处理(Median filtering, morphological processing)

Main program with a data file for the resolution of a system Ax=b The data file contents the dimension n and the values of the matrix A and the vector b.

说明：  Edge detection result should be enhanced using linear method like Median filter to remove the garbage around the pupil to gain clear pupil to determine perfect centre. Get the centre of the pupil by counting the number of black pixels (zero value) of each column and row. Then get each row and column that has the maximum number of these black pixels. Then determine the center by simple calculation according to the image coordinate to set it correct on the image, consequently we can determine the radius of the pupil. Thus we can find the pupillary boundary (inner). A similar procedure is extended by using a coarse scale to locate the outer boundary (limbus) which can be apparent by using the mid-point algorithms of circle and ellipse.

qpsk信号瑞利信道的仿真程序还有搞死的有ber(qpsk signal Rayleigh channel simulation program has also Gaosi ber)

工具箱 (数值积分工具箱) matlab 中使用(Kit (Numerical Integration Toolbox) matlab use)

数字水印图像的攻击测试 包括滤波、剪切、添加噪声、jepg压缩攻击等等(Attack test digital watermarking images, including filtering, cropping, adding noise, jepg compression attack, etc.)