ch3_9

Color feature detection using matlab

运用MATLAB设计一个LMS自适应滤波器，将一叠加在随机信号上的正弦干扰信号波滤除。(Use MATLAB to design a LMS adaptive filter, a random signal superimposed on the sine wave filter out signal interference.)

说明：  matlab系统仿真实例教程，ch10\m10_2.rar(examples of system simulation matlab tutorial, ch10 \ m10_1.rar)

About Image Proccesing for Retina

说明：  算差分盒维数的matlab程序。 让窗口中的每个像素都对分数维作出贡献。首先,计算某一尺度窗口的平均灰度值 ,然后判断每一个像素的灰度 ,若大于灰度平均值 ,则累加其灰度值为 max ,若小于灰度平均值 ,则累加其灰度值为min ,用max 和min代替 在 Sarkar 和 Chaudhuri 算法中的最大值和最小值 ,再通过拟合求出分数维。 (Differential count box dimension matlab program. Let window on the fractal dimension of each pixel to contribute. First, the calculation of an average gray scale of the window, and then determine the gray scale of each pixel, if the intensity is greater than the average, the cumulative value of its gray max, if less than the average gray level, the accumulation of its gray value of min, max and min to use instead of the algorithm in Sarkar and Chaudhuri maximum and minimum, and then by fitting the calculated fractal dimension.)

Prueba1 FletcherReeves Hernández Santiago José Maestría en Ciencias de la Computación Septiembre / 2011 1. Comenzar con un punto arbitrario 2. Calcular Gradiente de Fi 3. Si el Gradiente Fi es igual a 0(converge), termina 4. Si el Gradiente Fi es !=0 continuar 5. Encontrar dirección de búsqueda Si= -GradienteFi= - Gradiente F(Xi) 6. Determinar la Longitud Optima del incremento lamda(i) en dirección Si X(i+1)=X(i)+lamda(i)*S(i)= X(i)-lamda(i)*Gradiente F(Xi) 7. Hacer i=2 8. Obtener Gradiente Fi 9. Calcular Si= -GradFi + ( [abs(GradFi)^2]/[abs(GradF(i-1))^2] )*S(i-1) 10. Determinar la Longitud Optima del incremento lamda(i) en dirección Si X(i+1)=X(i)+lamda(i)*S(i)= X(i)-lamda(i)*Gradiente F(Xi) 7. Verificar Optimalidad de X(i+1) Si es optimo, detener Si no es optimo hacer i=i+1 e ir al paso 8

MNF变换，能够实现高光谱遥感图像的MNF正逆变换，进行图像降维与重建(MNF transform, to achieve high spectral remote sensing images MNF inverse transform, image dimensionality reduction and reconstruction)

说明：  this file is about risk managment in marketing....

第四个例子滤波应用程序，可以了解粒子滤波的工作原理(fourth example filtering application that can understand the particle filter Principle)

Simulation of the Lorenz Model for Convecting Fluids. Plots X(t),Y(t),Z(t) and the state space trajectory for given initial values, control parameter (r).