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Sharpening without an Aura

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  • Doug Nelson
    [Definition] Unsharp Masking
    Doug Nelson
    Janitor
    by Doug Nelson
    "Unsharp Masking" sounds like a bit of an oxymoron. The term goes back to pre-digital prepress days when they'd make an image appear sharper by sandwiching it with a slightly blurred (unsharp) copy of the same image.

    The effect then was the same as the digital effect now: the...
    01-31-2002, 06:57 PM
  • skydog
    There must be a better way...
    skydog
    Senior Member
    by skydog
    Any suggestions on avoiding or retouching halos? I have a decent camera and good glass, but when I sharpen...even a little I see those dreadful halos. I typically used layer>desaturate>a little highpass filer and overlay to sharpen which does a good job, but I hate the halos. Typically I shot...
    10-18-2009, 08:50 PM
  • philcrean
    LAB Sharpening method
    philcrean
    Junior Member
    by philcrean
    Hi all

    I'm new here and have been searching for a method to sharpen using LAB lightness channel. I can't find any info on this by searching forums or tutorials.
    Can someone point me towards something if I've missed it, or, can you offer an insight into this method?

    ...
    05-27-2009, 08:00 AM
  • jtd131
    Sharpening, but which one?
    by jtd131
    Hey, can anyone post a link for or explain the essential differences between the sharpening options in PS? I mostly use high pass, but not sure why, I just like it. I used to use unsharp, but heard I shouldn't. so.. I have been trying to figure out when to use what, but am getting mixed info. Any...
    01-14-2009, 11:19 PM
  • T Paul
    Sharpening
    T Paul
    Senior Member
    by T Paul
    There are several ways in Photoshop to sharpen an image. The most commonly used are Unsharp-Mask (USM) and High-Pass filter.

    USM Filter Basics: Sharpening increases the contrast at the edges of an image, ie, makes the dark pixels darker and the light pixels lighter. USM has three controls...
    08-12-2004, 02:53 PM
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