Fringing

[hudakore]

Yikes!! I took photos from the window of an old, 1929 Ford Tri-Motor airplane today. The photos turned out great but for some horrible unearthly violet and turquoise lines or fringes around the parts of the plane against the sky. I used the polyagonal lasso to (tediously) paint sky over them but is there an easier way? Why has this happened? I usually only get fringing when I isolate and then replace the background.

[frank abramonte]

hudakore, there maybe other ways, but not seeing what you're experiencing it's sort of difficult to suggest another method, among them:
1. Silhouette the subject and paste it into a new sky background.
2. using the Clone tool, clone in new sky in the problem areas.
3. If not much you can use the smudge tool to blend them.
I'm certain additional suggestions will be along shortly.

[Codebreaker]

To me this sounds my like something called Chromatic Aberration. Usually this is a lens quality problem whereby the colours making up the light get diffracted by different amounts causing a halo around high contrast edges.

This could be induced by the window through which you shot the images - which I guess is not optically that great.

In the full version of Photoshop by processing the image as a Camera Raw - or use Lightroom - there is a control to reduce Chromatic Aberration.

Regretably this is not an option in Elements. :(

Colin

[dj_paige]

In Elements, you can try reducing the saturation of the cyan or magenta colors. In some photos, with no other cyan or magenta in the photo, this is an effective way to remove fringing.

[Jeff Perry]

DJ's method can be supplemented by a very quick selection of the area using your weapon of choice. I would try the using the Magic Wand tool with a pretty narrow Tolerance setting and uncheck Contiguous, then click on the purple fringe areas. Then expand (Select>Modify or >Refine Edge) the selection a few pixels. Once happy with the selecion, apply a Hue/Sat adjustment layer and as DJ suggested desaturate the Magenta and if necessary Cyan channels.

Jeff

[athegn]

I use PTLens, not free but cheap, to correct camera/lens aberrations:-

http://epaperpress.com/ptlens/

[hudakore]

Thank you all for your help. It was probably the window I was shooting through as I have good Canon lenses.

Athegn, I was going to download PTlens but am not sure if it's just a plug-in for Photoshop or compatible with Elements, too. Can you let me know, please?

[Chuck S.]

Thank you all for your help. It was probably the window I was shooting through as I have good Canon lenses.

Athegn, I was going to download PTlens but am not sure if it's just a plug-in for Photoshop or compatible with Elements, too. Can you let me know, please?

Yes, compatible with Elements. I believe you can download a trial version - or at least in the past you could.

[hudakore]

I'll check it out, thanks. I rarely have the occasion to take photos from a plane window so it may noy happen again in this lifetime.

Also, after answering the earlier posts, I tried reducing the cyan and magenta colors and voila! it worked beautifully. Fortunately, there were no other areas (that I could detect) that were effected.

This forum is such a blessing!

[athegn]

PTLens is compatible with all versions of Elements.

My main use for it is correcting Pin/Barrel distortion; I like my straight lines straight! Very useful with my wide angle lenses.

[hudakore]

I downloaded and tried PTLens and WOW! How simple is that! Who are these geniuses that make life so easy?

[athegn]

This particular genius is Tom Niemann; send him a email?

[hudakore]

Sure. I intend to buy the program.