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Fringing
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Oct 10, 2018 08:54:42   #
NBBPH Loc: Indiana
 
I was looking at friends photos last night and noted that there was a fine white outline on the subject in two of his photos. I have seen this before on one of my photos and was told it can be corrected. What causes it and how can it be corrected. I call it fringing, maybe there is another word for it.

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Oct 10, 2018 08:57:14   #
SonyA580 Loc: FL in the winter & MN in the summer
 
I've noticed it mostly when I get too aggressive with the sharpening tool.

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Oct 10, 2018 08:57:58   #
rmalarz Loc: Tempe, Arizona
 
The white outline is generally caused by over sharpening. There are some youtube videos that cover how to remedy this issue.
--Bob
NBBPH wrote:
I was looking at friends photos last night and noted that there was a fine white outline on the subject in two of his photos. I have seen this before on one of my photos and was told it can be corrected. What causes it and how can it be corrected. I call it fringing, maybe there is another word for it.

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Oct 10, 2018 08:58:29   #
jerryc41 Loc: Catskill Mts of NY
 
NBBPH wrote:
I was looking at friends photos last night and noted that there was a fine white outline on the subject in two of his photos. I have seen this before on one of my photos and was told it can be corrected. What causes it and how can it be corrected. I call it fringing, maybe there is another word for it.


The subject was either an alien or a saint.

Or, it could be as SonyA580 said - over sharpening. : )

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Oct 10, 2018 09:00:39   #
Linda From Maine Loc: Yakima, Washington
 
Not to be confused with color fringing (chromatic aberration):
https://digital-photography-school.com/chromatic-aberration-what-is-it-and-how-to-avoid-it/

The over-sharpening mentioned by others can be caused by more than just the "sharpen tool" - such as Nik Color Efex's "detail extractor" filter, and sometimes the tonal contrast filter. Rather than correcting, it should be avoided when editing...or by being less aggressive with the camera style settings if that's what you use and shoot jpg.

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Oct 10, 2018 12:55:20   #
speters Loc: Grangeville/Idaho
 
Linda From Maine wrote:
Not to be confused with color fringing (chromatic aberration):
https://digital-photography-school.com/chromatic-aberration-what-is-it-and-how-to-avoid-it/

The over-sharpening mentioned by others can be caused by more than just the "sharpen tool" - such as Nik Color Efex's "detail extractor" filter, and sometimes the tonal contrast filter. Rather than correcting, it should be avoided when editing...or by being less aggressive with the camera style settings if that's what you use and shoot jpg.
Not to be confused with color fringing (chromatic ... (show quote)




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Oct 10, 2018 14:26:45   #
mwsilvers Loc: Central New Jersey
 
NBBPH wrote:
I was looking at friends photos last night and noted that there was a fine white outline on the subject in two of his photos. I have seen this before on one of my photos and was told it can be corrected. What causes it and how can it be corrected. I call it fringing, maybe there is another word for it.


Fringing is an artifact of chromatic aberration, usually red and purple. What you were seeing is not fringing, as others have suggested, but rather halos resulting from over sharpening.

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Oct 11, 2018 05:47:53   #
wdross Loc: Castle Rock, Colorado
 
mwsilvers wrote:
Fringing is an artifact of chromatic aberration, usually red and purple. What you were seeing is not fringing, as others have suggested, but rather halos resulting from over sharpening.


Over sharpening has my vote.

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Oct 11, 2018 06:07:59   #
catchlight.. Loc: Wisconsin USA- Halden Norway
 
... really doesn't matter... sharpening issues can be lessened or eliminated with "blend if".

Always sharpen last with High pass and then unsharp mask together in the "vivid light" mode.

Best tip in my opinion is to copy a layer and then change the mode to "darken"... Next use the clone stamp to sample near the white halo and simply fill in... Darken mode will do an amazing job.

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Oct 11, 2018 09:45:57   #
jackm1943 Loc: Omaha, Nebraska
 
NBBPH wrote:
I was looking at friends photos last night and noted that there was a fine white outline on the subject in two of his photos. I have seen this before on one of my photos and was told it can be corrected. What causes it and how can it be corrected. I call it fringing, maybe there is another word for it.


This sounds to me also that there was some over sharpening going on. I have found that applying a modest amount of Structure in Nik Vivesa not only improves most images but greatly reduces the amount of sharpening required and virtually never results in the white halos.

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Oct 11, 2018 12:26:48   #
GENorkus Loc: Washington Twp, Michigan
 
mwsilvers wrote:
Fringing is an artifact of chromatic aberration, usually red and purple. What you were seeing is not fringing, as others have suggested, but rather halos resulting from over sharpening.



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Oct 11, 2018 14:30:55   #
cambriaman Loc: Central CA Coast
 
Definitely over sharpening. I avoid it like the plague.

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Oct 11, 2018 15:36:10   #
mwsilvers Loc: Central New Jersey
 
cambriaman wrote:
Definitely over sharpening. I avoid it like the plague.


Over sharpening is one of the most common errors made in post processing, and too often not just by newbies. It's ruined many otherwise good compositions. Many people seem to believe that their images should be made as sharp as possible in PP, and if a little sharpening is good then a whole lot of sharpening must therefore be better. This is the result of misunderstanding what sharpening actually does, how it does it, how to get the best results when using it, and the artifacts created when it's overused.

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Oct 11, 2018 18:51:58   #
catchlight.. Loc: Wisconsin USA- Halden Norway
 
Not always from post sharpening... Shifts in blues to contrasting colors will do this among other things and can be generated in camera.

In Lightroom, go down to the Lens Corrections panel and select Remove Chromatic Aberrations. You can also turn on Profile Corrections while you’re at it. Most of the white lines around everything will be removed.

If not all, I described how to eliminate the effect in an earlier post.

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Oct 11, 2018 22:34:36   #
mwsilvers Loc: Central New Jersey
 
catchlight.. wrote:
Not always from post sharpening... Shifts in blues to contrasting colors will do this among other things and can be generated in camera.

In Lightroom, go down to the Lens Corrections panel and select Remove Chromatic Aberrations. You can also turn on Profile Corrections while you’re at it. Most of the white lines around everything will be removed.

If not all, I described how to eliminate the effect in an earlier post.

In this case they were white fringes, or halos, which is indicative not of chromatic aberration but of over sharpening. Chromatic aberration does not display as white.

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