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📋📋📋本文目录如下:🎁🎁🎁
目录
💥1 概述
📚2 运行结果
🎉3 参考文献
🌈4 Matlab代码实现
💥1 概述
使用Barten模型计算输入空间频率的对比敏感度值。输入参数包括空间频率(周期/度)、显示亮度 (cd/m2)、周围亮度 (cd/m2) 和视场(度)。
📚2 运行结果
部分代码:
function [ CSF_out ] = CSF( fq,L,Ls,X )
% Calculate contrast sensitivity (Barten model) for a series of spatial frequencies
% fq: spatial frequency in cycle/degree, should be a scalar or a vector
% L: display luminance in cd/m2
% Ls: surround luminance in cd/m2
% X: Field of view in degree
% CSF: retured contrast sensitivity
% CSF equation from: P. Barten, 揊ormula for the contrast sensitivity of the human eye,� Proc. SPIE 5294, 231�238 (2003).
% By Zong Qin (qin[email protected]) from National Chiao Tung University, Taiwan
Itm1=5400*exp(-0.0016*fq.^2*(1+100/L)^0.08);
Itm2=1+144/(X^2)+0.64*fq.^2;
Itm3=63./(L^0.86)+1./(1-exp(-0.02*fq.^2));
CSF_uncorrected=Itm1./sqrt(Itm2.*Itm3);
Itm4=(Ls/L)*(1+144/(X^2))^0.25;
Itm5=(1+144/(X^2))^0.25;
Itm6=((log(Itm4))^2-(log(Itm5))^2)/(2*log(32)*log(32));
Surround_factor=exp(-Itm6);
CSF_out=CSF_uncorrected.*Surround_factor;
end
🎉3 参考文献
部分理论来源于网络,如有侵权请联系删除。
[1]夏鹏,杨特,王乐,杨智春.平稳随机载荷的灵敏度分析识别方法[J].振动与冲击,2022,41(23):300-306.DOI:10.13465/j.cnki.jvs.2022.23.035.
[2]P. Barten, “Formula for the contrast sensitivity of the human eye,” Proc. SPIE 5294, 231–238 (2003).