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From: Dave on 18 Jul 2010 23:48
Hello,

I have a grey scale png image with camera noise I used both 'wiener2' and 'medfilt2' filters.First I applied wiener2 as
first = wiener2(myimage,[7 7]) ; next I applied medfilt2 as
second = medfilt2(first,[9 9]);
After applying these two I got an image which is smoothed and noise free.

My queries:
==>Is there any loss of data by applying two filters?

==>What is that second argument in both wiener2 and medfilt2 exactly and How to determine this value??(I randomly gave those values without knowing the details)

==>Can I use only any one of the filters to remove the camera noise and smooth it??

Could any one help me out.

regards,
Dave.
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