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Having no luck with removing yellow spots

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  #1  
Old 07-11-2009, 04:16 PM
jaxx jaxx is offline
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Having no luck with removing yellow spots

I have spent several hours and still am unable to remove these spots. I posted a cropped portion of the image to make it easier to see. It would take forever to remove them with cloning and healing tools. I have tried color selections, lab channel blurring tricks, and still cannot find a decent solution. Any ideas?
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  #2  
Old 07-11-2009, 04:30 PM
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skydog skydog is offline
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Re: Having no luck with removing yellow spots

To me it looks like something was spilled on the photo and destroyed the surface removing any usable data. I would think you'd need to restore via cloning and healing.
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Old 07-11-2009, 04:43 PM
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Sweetlight Sweetlight is offline
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Re: Having no luck with removing yellow spots

Jaxx, is the over the whole image?
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Old 07-11-2009, 04:46 PM
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lurch lurch is offline
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Re: Having no luck with removing yellow spots

Detail is virtually untouched in the blue channel.
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Old 07-11-2009, 04:57 PM
jaxx jaxx is offline
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Re: Having no luck with removing yellow spots

Quote:
Originally Posted by Sweetlight View Post
Jaxx, is the over the whole image?

Yes, the yellow spots cover the whole image, making me dread cloning and healing. Hopefully someone has a trick up their sleeve to remove the majority of staining.
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Old 07-11-2009, 05:47 PM
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lurch lurch is offline
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Re: Having no luck with removing yellow spots

Try this, Jaxx. When the damage is yellow or red, the blue channel almost always shows nearly full detail, as it does in your case. This is a situation tailor-made for doing corrections on a luminosity layer. Here's what I did with your snippet (workflow attached):

1) Should have duplicated the background layer (here it's a case of "do what I say, not what I did")

2) Made a channel mixer adjustment layer with the monochrome box checked. Worked the sliders until the spots disappeared from the hair. They still show up some on the skin, but that's easier to clean up than hair. If your photo is really complicated you could do this in zones, a different channel mix for each.

3) Used Layer>Option+Merge Visible to get a monochrome layer to work on. Set the blending mode for that layer to luminosity. Turned off visibility on the Channel Mixer layer.

4) Added an empty layer set to color mode. On this layer painted over the yellow stains with color sampled from nearby. I can't remember if my brush was set to color mode or normal mode. There are some subtle differences between the two - you can experiment to see which works best where.

On your thumbnail I only worked the hair, to illustrate the technique. Took about five minutes. The key is, if you get the tone right the corrected color blends in automatically. Cloning grayscale is easier for me than cloning color.
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File Type: jpg yellowDots.jpg (125.7 KB, 74 views)
File Type: jpg wkflo.jpg (19.3 KB, 47 views)
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  #7  
Old 07-11-2009, 05:50 PM
peter king peter king is offline
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Thumbs up Re: Having no luck with removing yellow spots

Hi. I used Selective Color - Yellow- + Black 47%. Then merged the file, made a layer copy, set the blend mode to color and painted over the discoloration with color from surrounding areas. Still need some healing brush but a big improvement.
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  #8  
Old 07-11-2009, 06:42 PM
chas18052 chas18052 is offline
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Re: Having no luck with removing yellow spots

did replace color twice and then color balance
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Old 07-11-2009, 08:06 PM
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MiningArt MiningArt is offline
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Re: Having no luck with removing yellow spots

desaturated
gradient fill, brown-brown/white
fill background with blue
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  #10  
Old 07-11-2009, 08:12 PM
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Sweetlight Sweetlight is offline
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Re: Having no luck with removing yellow spots

I worked Lurch's plan on it and it worked great.
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