Rank: 3731 based on 28 downloads (last 30 days) and 1 file submitted
photo

Grzegorz Mianowski

E-mail

Personal Profile:
Professional Interests:

 

Watch this Author's files

 

Files Posted by Grzegorz
Updated   File Tags Downloads
(last 30 days)
Comments Rating
28 Jun 2010 Lee filter Lee filter for reducing speckle noise in images Author: Grzegorz Mianowski image filtering, adaptive filtering, local statistics, speckle, despeckling, noise 28 4
  • 3.33333
3.3 | 3 ratings
Comments and Ratings on Grzegorz's Files View all
Updated File Comment by Comments Rating
19 Oct 2011 Lee filter Lee filter for reducing speckle noise in images Author: Grzegorz Mianowski Liyong, Qiao

thank you!

10 Oct 2010 Lee filter Lee filter for reducing speckle noise in images Author: Grzegorz Mianowski reddy, priyanka

not that much useful

01 Jul 2010 Lee filter Lee filter for reducing speckle noise in images Author: Grzegorz Mianowski Luengo, Cris

I know you just vectorized someone else's code, but you should at least check that code to see if it's useful before reposting it. If you fill out the definition of 'ENLs' into that of 'sx2s' you'll find that 'sx2s' == 0, and if you look at the pixel values for 'sx2s' you'll see that this is true (up to numerical accuracy). Thus, 'fbar' = 'means', you're outputting the result of a mean filter! I'm sure that this is not what a Lee filter is supposed to to.

29 Jun 2010 Lee filter Lee filter for reducing speckle noise in images Author: Grzegorz Mianowski Gustavsson, Bjorn

In the image processing toolbox there is a mathworks supplied function wiener2.m that implements the Lee filter. Since a requirement for using this function is the image processing toolbox I fail to see any utility of this function, when one would already have the image processing toolbox with the Lee-filter if one can run this function. Further that function for example lets me choose the size of the neighbourhood to use for filtering, something this function has hard-coded.

Contact us