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[OM] Re: Simplistic rules for sharpening, was: Zone 10 gallery

Subject: [OM] Re: Simplistic rules for sharpening, was: Zone 10 gallery
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Tue, 04 Mar 2008 20:03:55 -0500
I didn't know that.  Guess I'd better buy a copy of Qimage.  I've been 
saying I would for the past 2 years.

Chuck Norcutt


Johnny Johnson wrote:
> At 01:19 PM 3/4/2008, Chuck Norcutt wrote:
> 
>> 2) (and this is my very rough cut summation from the book) If you're
>> sharpening for a print then first, pre-size the image to the resolution
>> you'll use for the print (say, 240-300 ppi) then display the image in
>> your editor at roughly 25-30% and then sharpen until the screen image at
>> 25-30% looks just slightly "crunchy" or a bit over-sharpened.  The point
>> of displaying at 25-30% is to account for the significant differences in
>> resolution between screen and print (say 75ppi vs 300dpi or 1:4).  Then
>> sharpening the screen image until it's very slightly over-sharpened is
>> to account for the softening effect that will come about from laying
>> dots on paper.
> 
> And the really nice thing about using Qimage for printing is that you 
> can sharpen for what looks right to the eye at 50% on the screen and 
> then Qimage will automatically add the necessary additional 
> sharpening, based on output size, as it sends the file to the printer.
> 
> Later,
> Johnny
> 
> __________________________
> Johnny Johnson
> Cleveland, GA
> mailto:jjohnso4@xxxxxxxxxx 
> 
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