Oblique effect filter (OEF) 三维曲面
Oblique effect filter (OEF) 三维曲面--MATLAB代码：% create a discrete FIR digital oblique effect filter(OEF)
clc,clear,close all
f = -60:1:60;
cita = -60:1:60;
= meshgrid(f,cita);
r = 0.348;% 3.48;
lamda = 13.57;
for i=1:size(F,1)
for j=1:size(F,2)
if (abs(F(i,j))>r)
OEF(i,j) = 1-( 1-exp( -(abs(F(i,j))-r)/lamda ) ) * sin( 2*CITA(i,j)*pi/180 ) * sin( 2*CITA(i,j)*pi/180 );
else
OEF(i,j) = 1;
end
end
end
mesh(F,CITA,OEF);
axis tight;**** Hidden Message *****
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