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Article #80Re: New Epson flatbed scanner...
From: Don
Date: Mon, 27 Feb 2006 14:41
Date: Mon, 27 Feb 2006 14:41
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2559 bytes
On 26 Feb 2006 20:04:13 -0800, "Noons" <wizofoz2k@yahoo.com.au> wrote: >>>If you have the skills, you have grain or don't according to your >>>wishes. It's a matter of skill. >> >> Not quite. An image on film *is* grain. Therefore (appearance of) >> grain can't be removed without at the same time removing image data. >> Nothing to do with skill. > >Grain is not the same as pixels... Yes, only this is not about pixels but about "skill" reducing grain. The film image itself is composed of lumps of (analog) grain in the film emulsion. This is then mapped to (available) pixels where (depending on resolution) these lumps will be more or less visible. No amount of "skill" can reduce the visibility (i.e. appearance of) grain without at the same time reducing information (i.e. image data). And this goes for both software (GEM, etc) and hardware (diffuse light source) "solutions". Without going into detail both of them reduce the amount of data i.e. make the image "soft" or, as call it, "fuzzify". Indeed, by simply defocusing slightly the appearance of grain can be reduced. And, self evidently, an out-of-focus image has less image information/data than an in-focus image. Don.
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X-Google-Thread: f75de,a67d5152fd90ea94 X-Google-Thread: 109d17,a67d5152fd90ea94 X-Google-Attributes: gidf75de,gid109d17,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!newshub.sdsu.edu!router2.astraweb.com!mrouter.astraweb.com!news.astraweb.com!router1.astraweb.com!sn-xt-sjc-04!sn-xt-sjc-09!sn-post-01!supernews.com!corp.supernews.com!not-for-mail From: Don <phoney.email@yahoo.com> Newsgroups: comp.periphs.scanners,aus.photo Subject: Re: New Epson flatbed scanner... Date: Mon, 27 Feb 2006 15:41:36 +0100 Organization: Posted via Supernews, http://www.supernews.com Message-ID: <pn36025l548k5qej6phifor0n49qaf5127@4ax.com> References: <1140762568.191486.83070@i40g2000cwc.googlegroups.com> <43fee4fe$0$15126$afc38c87@news.optusnet.com.au> <qc0uv15h6eb5dqp2k15kghkafimv7gjaje@4ax.com> <1140868252.787297.21890@e56g2000cwe.googlegroups.com> <1140885791.963753.238880@e56g2000cwe.googlegroups.com> <j3j202l1fl429ce27cje8v4bbau0hanrbf@4ax.com> <1140961097.708824.61360@z34g2000cwc.googlegroups.com> <h6k302pv7qrr6tvqg2ei7a6ifbb4ohva61@4ax.com> <1141013053.604930.292580@t39g2000cwt.googlegroups.com> X-Newsreader: Forte Agent 2.0/32.652 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@supernews.com Lines: 29