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[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

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