Archived posting to the Leica Users Group, 2014/03/19

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Subject: [Leica] Sharpening for Sensors with no AA filter
From: roark.paul at gmail.com (Paul Roark)
Date: Wed, 19 Mar 2014 20:53:48 -0700
References: <E4F1AFF5-C49D-48B4-B4E5-02263F98B541@gmail.com> <CAJ3Pgh6G=-dWmtR2=aNkFajETtAG8W7HMo1ygsit9uh7abQ=ng@mail.gmail.com> <CAAsXt4Pe4=pmCm0JCKzx5LpFOHWCVNhjTkq_-AjrZhYTzJW0Ew@mail.gmail.com>

My sharpening comparison between PS CC and CS5 is at
http://www.paulroark.com/BW-Info/Sharpen-test.jpg .

Save it and view it at about 400% to see how the newer Adobe algorithm is
throwing a ripple that can then be over-sharpened into a line.  Use the
eyedropper at 1 pixel to confirm that it's not just your eyes.  The older
approaches do not have this problem.

Paul
www.PaulRoark.com


On Wed, Mar 19, 2014 at 8:33 PM, Robert Adler <rgacpa at gmail.com> wrote:

> Hi Paul,
> Attachments are stripped by the LUG. Do you have a link?
> Thanks,
> Bob
>
>
> On Wed, Mar 19, 2014 at 6:51 PM, Paul Roark <roark.paul at gmail.com> 
> wrote:
>
> > I've noticed the sharpening artifact with PS CC also.  See the attached
> > test I did comparing CC to CS5.  CC's sharpening routine is throwing off
> a
> > "ripple."  CS5 does not.
> >
> > Paul
> > www.PaulRoark.com
> >
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> >
>
>
>
> --
> Bob Adler
>
> _______________________________________________
> Leica Users Group.
> See http://leica-users.org/mailman/listinfo/lug for more information
>


Replies: Reply from rgacpa at gmail.com (Robert Adler) ([Leica] Sharpening for Sensors with no AA filter)
In reply to: Message from rgacpa at gmail.com (Bob Adler) ([Leica] Sharpening for Sensors with no AA filter)
Message from roark.paul at gmail.com (Paul Roark) ([Leica] Sharpening for Sensors with no AA filter)
Message from rgacpa at gmail.com (Robert Adler) ([Leica] Sharpening for Sensors with no AA filter)