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[OM] Re: Sharpening (was: Re: Walt dares criticize Moose photos)

Subject: [OM] Re: Sharpening (was: Re: Walt dares criticize Moose photos)
From: "Bill Pearce" <bs.pearce@xxxxxxx>
Date: Wed, 28 Jun 2006 13:33:26 -0500
Mike,

Thanks! I'll give this a try. It's interesting that we have both arrived at 
the same end for offset printing. Obviously, he did it through brains and I 
by luck.

Bill Pearce
----- Original Message ----- 
From: "Mike Lees" <olympus@xxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, June 28, 2006 1:22 PM
Subject: [OM] Sharpening (was: Re: Walt dares criticize Moose photos)


>
> Hi,
>
> I have recently been experimenting with a new (to me) sharpening
> technique. I was getting frustrated with halos and sharpening artefacts
> in my bokeh but this technique seems to address these issues.
>
> What it comes down to is:
>
> Only the edges are sharpened - thus leaving bokeh in tact.
> Only the luminosity channel is sharpened - which apparently means any
> noise won't get sharpened.
>
> The full description is here:
> http://www.gimpguru.org/Tutorials/SmartSharpening2/
>
> The tutorial is for GIMP but was originally for PS and there is a link
> from this page to the original PS version.
>
> The main downside for me was how long it took to apply this technique to
> an image - just remembering what to do in what order was a challenge. So
> for any GIMP users out there I have created a GIMP plug-in that
> automates the procedure, while still allowing control over the parameters.
>
> I'm interested to hear if anyone else has tried this technique or
> something similar.
>
> Drop me a off-list message if you want the plug-in.
>
> Regards,
>
> Mike.
>
>
> Bill Pearce wrote:
>> Not to jump on things, but I agree with Walt, and I expect a T shirt in 
>> the
>> mail.
>>
>> It should be noted that different levels of sharpening are needed for
>> different uses. I apply a boatload for images to be printed on the offset
>> press. Those levels look bad on the screen, and in a inkjet print. It 
>> seems
>> to me that the least looks best on a monitor, something that seems 
>> strange,
>> considering how monitors can turn the greatest photo to crap.
>>
>>
>
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