How deblur an image???

Someone can help me in deblur this image in matlab please!!!

Thanks!

http://www.flickr.com/photos/63036721@N02/5733034767/

Answer 1

[Frank]

You can use this to sharpen the image, that may help deblur it. This will allow you to select an area that you want to sharpen.

I = imread('image name');
imshow(I)

BW=roipoly;

imshow(BW)

h = fspecial('unsharp');
I2 = roifilt2(h,I,BW);
imshow(I)
figure, imshow(I2)

[Alessandro]

It works a little but is not enough, what I can do to improve the sharpness?

Thanks!

[Sean de Wolski]

Define "Not enough"

[Frank]

Read a bit into this (for the script):

http://www.mathworks.com/help/toolbox/images/ref/fspecial.html

and check this out, it maybe helpful.

http://m2matlabdb.ma.tum.de/download.jsp?MC_ID=5&MP_ID=188

[Alessandro]

"Not enough" means that I should get a better circle with less blurring.