Help… Worst Color Corruption

[Richard6911]

I’m being held hostage by the worst color corruption problem I’ve ever encountered. I can’t call Chris Tarentino – because he’d give me some mathematical formula I’d never understand. I can’t call Amy Dresser – because she’d advise me, “Try about 100 lassos and color curves.”
So I’m desperate for you guys! This picture is a retouch for a business professional who had some yokel in Texas do his portrait. It has the strangest yellow cast on one side of the picture that has resisted everything I’ve tried.
How in the world can I free myself and complete this job?!!
Help me please!

[Nasturtium]

Of the things I tried a channel mixer adjustment layer seemed to work the best. I'm sure there are others ways to accomplish it.

I chose 'yellow' from Select>Color range to make a mask and then messed with the red and green channels in the channel mixer.

HTH

Nancy

[0lBaldy]

I wanted to try replacing color using curves

A Real quick try

Did a levels on face using White, Gray, Black points
Curves using RGB Input (bad Color) / output (good skin color)
Hue/Saturation Adjusted Reds and magentas
Levels
Painted skin color on a new color mode layer over persistent yellow/green spots (Used good hair color in the hair)
Sharpened Irises and shirt patch on a copied masked layer

Into LAB and Lowered the Lightness just a bit

[amica999]

Nice result, Nancy. I'd approach this with color correcting by numbers:

take color samples (5x5) from a lighter shadow area and one from the casted area. Lasso mit feather around 70px, open a curves and toggle a center point for each channel and adjust input/output values. For example Blue Input 83 - Output 117 apint with low opacity white brush if not all is covered.

[Panpan]

I flipped the good half-face, adjusted it over the tungsten-lit half with Transform and Liquify and set the blend mode to Color.

The sweater was surprisingly trickier. The underweave is purplish while the top weave is faded to a more cyanish shade of blue. So Match Color did not work well. I could have set up a gradient map, but I just shifted Hue a little and did it again for the edge. Luckily, only a small area was affected.

[philbach]

Well I didn't do anything exotic. I used a new layer with color blending mode and painted the left side of his face.

I also used a selective color adjustment layer and removed some yellow

[Britsdad]

Hiya Richard6911

I too did nothing exotic, all I did was add a selective colour adjustment layer, toned down the yellows, inverted the mask and then painted white over the effected area on the mask with a large soft brush, set at 10% flow, until all the yellow cast was gone.

Regards....John

[Wolfman]

Originally Posted by Richard6911

I’m being held hostage by the worst color corruption problem I’ve ever encountered. I can’t call Chris Tarentino – because he’d give me some mathematical formula I’d never understand. I can’t call Amy Dresser – because she’d advise me, “Try about 100 lassos and color curves.”
So I’m desperate for you guys! This picture is a retouch for a business professional who had some yokel in Texas do his portrait. It has the strangest yellow cast on one side of the picture that has resisted everything I’ve tried.
How in the world can I free myself and complete this job?!!
Help me please!

Kept it simple..... tried to keep original natural color on the good part and just used the brush tool set to color and sampled the good skin color and painted over the bad part... same with hair..... did it fast, so missed some hair

[lynn55]

I used a selective color adjustment layer and Colors: Yellow and Red

[csuebele]

thing like this, I like to use selective color. I go into the pixel level and select the pixels that are just way out then use the feathering to expand or contract the selection. If you select the pixels that you know are not even close to skin tones, you can really improve the color. Usually you come across deep magenta or magenta/blue, also the yellow/green combo. Then you can use hue/sat or curves or whatevery adj you want. I could have done a bit more this this as there is still a bit of yellow across the forehead and in the beard, but it's pretty easy.

[chillin]

Used curves & -yellow with HSL

[unimatrix001]

I used two separate replace color selections one to remove the green on the face and one for the hair and beard. then used select color range selected the blue shirt and used a curves to adjust the blue channel from the selection.

[tom60634]

I first made a duplicate layer.
I used apply image to replace the blue channel with the green.
I changed the layer mode to color.
This wiped out most of the yellow.
I then picked a sample of the man's beard that would not have been affected by smoking and used the curves panel to neutralize the yellow in the beard.
I believe I had to adjust the red by 15 or so points.

I could have made the man's skin ruddier, but since I don't know what his skin color actually is I left it as.

I let the shirt go green because with all the yellow contamination the shirt could have been just about any color and green seemed as likely as blue.
Who knows ? Obviously I don't !!!

[tom60634]

I used Image>Adjustments> Match Color then clicked on the Neutralize optioned, this didn't eliminate the yellow it made the non-yellow portion as yellow as the problem area.

It was then easy to duplicate the layer use apply image to replace the blue channel with the green. Most of the yellow disappeared.
A slight adjustment with curves wiped out the rest .

I sharpened. Finished !!! Less than two minutes start to finish.