PS 滤镜——运动模糊

%%%%%  motion blur

clc;

clear all;

close all;

Image=imread(‘4.jpg‘);

Image=double(Image);

theta=pi/4;

len=20;

row=floor(len*sin(theta))+1;

col=floor(len*cos(theta))+1;

motion_f1(1:row,1:col)=0;

K=tan(theta);

center_x=col/2;

center_y=row/2;

for i=1:row

for j=1:col

x=j-center_x;

y=center_y-i;

Dis=abs(K*x-y)/sqrt(K*K+1);

motion_f1(i,j)=max(1-Dis,0);

end

end

motion_f1=motion_f1/sum(motion_f1(:));

Image1=imfilter(Image,motion_f1,‘replicate‘,‘conv‘);

imshow(Image1/255);

motion_filter=fspecial(‘motion‘,20,0);

Image2=imfilter(Image,motion_filter,‘replicate‘,‘conv‘);

figure,

imshow(Image2/255);

原图

效果图

效果图