Filmscanners mailing list archive (filmscanners@halftone.co.uk)
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[filmscanners] Re: sharpening
Down sample and accept the smaller image size.
Otherwise you could try something I recently found helped to give an
illusion of detail and sharpness to a digicam image I had up-sampled greater
than 2x in each dimension (hence > 4x original area). The image contained a
lot of rocks close up and a chalk cliff in the background. Both of these
seemed to lack detail at the increased size. I figured if added something to
give it pseudo texture it would look more realistic so before sharpening I
added varying amounts of gaussian noise to the image depending on how much
detail I would expect to see. (e.g.. non to sky , a little to distant
objects and a little more to close-up objects).
It takes quite a bit of practice to achieve the right effect but I found of
the half dozen people I asked they all preferred the image with the added
noise. Not sure if this will work so well with scanned film as grain may
already provide a random noise element to the picture and I have not tried
it on other images which I suspect will be less well suited.
Steve
----- Original Message -----
From: <JFMahony91@aol.com>
To: <steve@gccl.fsbusiness.co.uk>
Sent: Tuesday, February 26, 2002 6:38 PM
Subject: [filmscanners] Re: sharpening
this is off subject but i have a camera break and some important shots are
out of focus (badly). what is the best way to try and scan and sharpen? i
have tried normal sharpening, in lab, by channels. any other ideas? nik
sharpen pro work better? i have a LS-4000 i have not tried sharpening in
scanner software but only in photoshop. thanks, joanna
----------------------------------------------------------------------------
------------
Unsubscribe by mail to listserver@halftone.co.uk, with 'unsubscribe
filmscanners'
or 'unsubscribe filmscanners_digest' (as appropriate) in the message title
or body
----------------------------------------------------------------------------------------
Unsubscribe by mail to listserver@halftone.co.uk, with 'unsubscribe
filmscanners'
or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or
body
|
