tezheng

a code for photo changer

射频功率放大器的数学建模，采用saleh模型在matlab环境下进行代码编写(hebavioral model of RF amplifier)

This is a basic program to execute the basic requirements of the image pyramid applications using matlab

求一幅模拟干涉条纹图的不同区域的条纹密度，并且用0-255表示，清晰，并且较为准确(Find a simulated fringe fringe pattern density in different regions, and said with 0-255, clear and more accurate)

一种流形学习算法（很好用），借鉴了主成分分析算法（PCA），课程设计时编写的matlab程序代码。( A fluid manifold learning algorithm (good use), It draws on principal component analysis algorithm (PCA), Course designed to prepare the matlab program code.)

把微分方程的一维经典初值问题的有限插分法：Euler法、改进的Euler法、Admas二步外插法、Admas二步内插法编写成通用子程序，并且利用这些通用子程序解决常微分方程的数值解。(The classical one-dimensional differential equations initial value problem of limited interpolation method: Euler method, improved Euler method, Admas outside the two-step interpolation, Admas two-step interpolation method into a general-purpose subroutine to prepare and use it to solve common subroutines Numerical Solution of Ordinary Differential Equations.)

通过建立运动模糊数学模型, 进行了消除运动模糊的仿真实验, 维纳滤波恢复运动模糊图像效果较 好。在图像恢复技术中, 点扩展函数( PSF) 是影响图像恢复结果的关键因素, 所以常常利用先验知识和后验判 断方法估计PSF函数来恢复图像。实验表明在实际恢复过程中如果运动模糊图像混入了噪声, 必须考虑到信噪 比、噪声的自相关函数和原始图像的自相关函数对恢复后图像的影响。(Through the establishment of mathematical model of motion blur was conducted simulation experiments to eliminate motion blur, Wiener filter to restore motion-blurred image effect is good. In the image restoration technology, the point spread function (PSF) that affect the results of image restoration a key factor, so often used to determine a priori knowledge and a posteriori estimation PSF function to restore the image. Experimental results show that the actual recovery process if the motion-blurred images mixed with the noise, we must take into account the signal to noise ratio, the noise autocorrelation function and the autocorrelation function of the original image of the restored image effects.)

说明：  PacketX解码例子Decode.rar(PacketX\Examples\Scripts\Decode.rar)

说明：  短时傅里叶分析，时频分析等，m文件集合，tftb(Short time Fourier analysis, time-frequency analysis)

以MATLAB將影像做邊緣偵測以及邊緣強化， 邊緣偵測分別為Prewitt以及Canny， 邊緣強化是將邊緣做銳利化(MATLAB will do to the image edge detection and edge enhancement, edge detection, respectively Prewitt and Canny, edge enhancement is done to sharpen the edge)