y = point_spread_function(x, a, b); % 调用点扩散函数 disp(y); % 输出处理后的信号 ``` 运行以上代码,我们可以得到输出信号y,其长度为30,幅度是输入信号的两倍,并且持续时间延长了3倍。 总结起来,本文介绍了点扩散函数的概念及其在Matlab中的实现方法。通过使用Matlab提供的函数和语法,我们可以方便地对...
点扩散函数(point spread function,简称psf)是仪器对冲激信号的响应，其实就可以理解为系统响应，而光学传...
title('Point Spread Function')运行这段代码将生成双螺旋点扩散函数的相位分布图像和点扩散函数图像。左...
在进行图像去模糊之前,我们首先需要估计点扩散函数(Point Spread Function,PSF)。PSF描述了从一个点源发出的光在传播过程中如何扩散。Matlab中有多种方法可以估计PSF。其中一种常用的方法是利用模糊图像和原始清晰图像之间的关系来估计PSF。Matlab提供了一些函数,如“deconvblind”和“deconvreg”,可用于此目的。 1.2盲去...
3. 运动图像去模糊 基于matlab运动模糊图像处理的源代码 使用维纳滤波; functiondeblurred(im, a, b, NSPR)i=imread(im);f = im2double(i); PSF = fspecial('motion', a, b); % point spreadfunction(PSF)frest1=deconvwnr(f, PSF, NSPR);% NSRisthe noise-to-signal power ratioofthe additive noise...
, the MATLAB program has advantages ofsuccinct language, great reductions of demand of mathematic basis and computer language, and it is aefficient tool for scientific and engineering research.Key words: Point spread function; One dimensional computation; Hankel transform; MAT LAB software 收稿日期: ...
关键词:点扩散函数;一维计算;Hankel变换;MATLAB软件中图分类号:TN21;TP31文献标识码:A文章编号:100722276(2004)0420405204One2dimensionaldigitalcomputationandrealizationonMATLABofpointspreadfunction3JiangYue2song1,QiuZhi2wei2,LiZheng1(1.DepartmentofOptoelectronicsandInformation,SchoolofInformationElectricalEngineering,...
(with Numerical aperture NA) illuimination. The model is for one or two polarization (Polarizations Variable). The software also support the simulation of the focused spot size (focusing Point Spread Function ) of an objective. (Put Sim_Objective to 1) in this case the plane wave dephasin...
% PSF is the point-spread function with which I was convolved. % NSR is the noise-to-signal power ratio of the additive noise. % NSR can be a scalar or a spectral-domain array of the same size as I. % Compute H so that it has the same size as I. ...
planck - planck black body function. plotzemaxotf - plot a thru-frequency mtf/otf as returned by readzemaxotf or zgetmtf. psf - diffraction-limited monochromatic point spread function. ppsf - diffraction-limited polychromatic point spread function. psf2d - 2d image of the diffraction-limited ...