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Banding

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  #1  
Old 01-08-2007, 09:19 AM
perrinart perrinart is offline
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Banding

Need help to get rid of banding in photo.
What causes this and how do I get rid of it.
See attachment.
Thanks.
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File Type: jpg Side-#035-a.jpg (94.8 KB, 133 views)
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  #2  
Old 01-08-2007, 09:42 AM
Cassidy Cassidy is offline
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Re: Banding

Unfortunately the photograph seems too small to be able to appreciate the banding, is this photographed digitally or scanned?
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  #3  
Old 01-08-2007, 10:52 AM
perrinart perrinart is offline
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Re: Banding

Shot digitally-here's one at 100kb
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File Type: jpg Side-#035---247-a.jpg (93.4 KB, 116 views)
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  #4  
Old 01-08-2007, 12:20 PM
CJ Swartz's Avatar
CJ Swartz CJ Swartz is offline
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Re: Banding

Looks like the folks were having fun, and it's no fun to lose an image of friends/family having a good time.

There's no exposure (EXIF) info in your uploaded image, so I don't know what the original looks like. It appears to be shot indoors, in reduced light with flash, and a number of cameras can show banding problems if they are used at high ISO settings in low light. What was the ISO setting, what was the shutter speed/Fstop, what is the camera make/model? Did other images you shot at the same location show banding? Were they shot at the same time with same lighting or different time and/or different lighting? DPreview.com is an excellent resource for information about digital cameras if you are having a consistent problem with your camera. If you recently purchased your camera, and it is still under warranty, I would do a search at DPreview.com to see if there is a known problem with your particular make/model or if your camera might be possibly in need of replacement/repair. But it could be simply an issue of the lighting and ISO being too high for your camera. Tell us more, and we may be able to help you track down likely causes and ways to prevent losing an image in the future.
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  #5  
Old 01-08-2007, 12:45 PM
perrinart perrinart is offline
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Re: Banding

Photo was shot with a Canon ESO 5D
1/60@6.3 ISO 400 28mm
Wedding photographer sent photo to me to be retouched.
Said the cause was interference from other electronics at reception- DJ,
other strobes etc. Need to know if there is an easy way to retouch it out quickly. I'm using PS CS2.
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  #6  
Old 01-08-2007, 01:32 PM
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Cameraken Cameraken is offline
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Re: Banding

Hi Perrinart

Welcome to Retouch Pro.

I’m not sure about the cause of these lines but here is a method to help reduce the problem.

Duplicate the background twice and set the blending mode of them both to lighten
Shift one layer 5 pixels up
Shift one layer 5 pixels down

Select All > Copy Merged > Paste

Add a hide all mask to this layer and turn of the two shifted layers

Now just paint with white onto the mask to paint out the marks.

Hope this helps.

Ken.
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File Type: jpg Ken_Side-#035---247-a.jpg (97.5 KB, 136 views)
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  #7  
Old 01-08-2007, 04:02 PM
Jerryb Jerryb is offline
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Re: Banding

hi,
Well first I am just a novice and you already have a good reply on eliminating the banding... in fact I am going to experiment and practice it myself...

on the cause... now I don't know much about cannon's but I did some research.. and it appears this can be a common problem with cannon good cameras especially if there high iso setting and low light.... I saw a lot of upset people who had the 1d or the 5d .and had banding issue.. and coupleof other models.. smiles..

Now this link primarily talks about the cannon 1d but there general suggestions may apply to the 5d... basically updating the camera firmware and adjusting tonal curves...
http://www.tow.com/photo/articles/banding/

but I would suggest probably hit the cannon's webpage forum.... get more specific details for you camera....



Quote:
Originally Posted by perrinart
Need help to get rid of banding in photo.
What causes this and how do I get rid of it.
See attachment.
Thanks.
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  #8  
Old 01-08-2007, 07:04 PM
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Swampy Swampy is offline
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Re: Banding

Wonderful, Ken! :-)
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  #9  
Old 01-11-2007, 03:54 PM
perrinart perrinart is offline
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Re: Banding

Ken, thanks that really helped
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  #10  
Old 01-11-2007, 04:12 PM
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Cameraken Cameraken is offline
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Re: Banding

Hi Perrinart

You are welcome.

I have just purchased a 5D and was not aware of this problem. It appears there have been a couple of firmware upgrades which now eliminate this. It may be worth following Jerry’s links and finding the upgrade

Thanks Swampy.

Ken.
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