Blurring and Deblurring Matlab code

Aim: To perform blurring & deblurring of an image

Equipments:

Operating System: -     Windows XP

Software: -                   Matlab 7.5, Image Processing Toolbox.

Program:

clc;

close all;

clear all;

f=imread('cameraman.tif');

subplot(1,2,1);imshow(f);title('original image');

LEN = 31;

THETA = 11;

PSF = fspecial('motion',LEN,THETA);

Blurred = imfilter(f,PSF,'circular','conv');

subplot(1,2,2);imshow(Blurred);title('Blurred Image');

% deblurring

figure,subplot(1,2,1);imshow(Blurred);title('Blurred image');

wnr1 = deconvwnr(Blurred,PSF);

subplot(1,2,2);imshow(wnr1);title('Deblurred Image');

title('Restored, True PSF');

Results:-

Blurred

Deblurred