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Photo Restoration Repairing damaged photos

Red channel disaster

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  #1  
Old 07-11-2005, 06:38 PM
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deadants deadants is offline
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Red channel disaster

Here's a link to a photo that has a red channel problem. http://tinyurl.com/9hr8f This is the Rootschat Genealogy website where people are researching their family historys. I have seen this problem solved before on retouchPRO but I don't think I could tackle it with much confidance.

I hope someone can help this person with their picture.

cheers

deadants
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  #2  
Old 07-11-2005, 10:02 PM
tb5821 tb5821 is offline
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Here is my rough cut...
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Old 07-11-2005, 10:16 PM
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Flora Flora is offline
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Hi,

deadants,

this is what I managed to do ...

tb5821,

... yes, a bit rough but definitely in the right direction!
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Old 07-11-2005, 10:39 PM
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Wow Flora, you never cease to amaze me. I will direct Sandie to this page so she can see what you guys have accomplished. I certainly would love to know how you arrived at the solution to this problem. I know I've seen this on RetouchPRO somewhere but a good step by step would be much appreciated.

tb5821, I was getting a similar result but there is a problem merging the gradient in the red that has me stumped.

deadants
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  #5  
Old 07-11-2005, 11:03 PM
tb5821 tb5821 is offline
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Quote:
Originally Posted by Flora
Hi,

deadants,

this is what I managed to do ...

tb5821,

... yes, a bit rough but definitely in the right direction!
Flora, can you post some details on how you achieved what you did...thanks
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  #6  
Old 07-12-2005, 11:29 AM
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Excellent job Flora. I roughly selected the problem in the Red channel, then worked back and forth on both sides in RGB matching numbers as best as I could and fine tuning with Selective Colors, Hue Saturation and a bit of coloring in Color mode.

Cheers
Dave
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  #7  
Old 07-12-2005, 04:36 PM
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This has just taken me far too long to do.
I understand the theory which is
Make a loose selection around the area then adjust hue/saturation sliders

The trouble is that I donít know which slider to adjust or in which direction. I donít even know what colour I should be adjusting.

I try using the eyedropper on good and bad areas. And Iíve even tried changing the eyedropper to HSL however nothing seems to help me get the correct values.

Iíve been told that even colour blind people can become good at correcting by the numbers. So there has to be a way that this can be done.

Duv. You mention doing it by the numbers. How do you do it?

Ken
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Old 07-12-2005, 06:25 PM
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Hi Ken

There's lot's of different ways to tackle the problem. Hopefully Flora will weight in with her methodology.
After I made the selection in Red Channel I converted back to RGB. I made 2 assumptions, that the wall was more or less white and the woman's stripped outfit was white and black. I put a sampler on the contaminated wall and another on a contaminated black stripe. I then noted readings on the good wall and good part of the dress.
Rather than trying to work the curves all in one go, you might have better success matching the highlight values, flattening image then a new curves adjustment for the shadows.
With my adjustments I lost virtually all red color in the baby's outfit and part of the girls sweater so I just cloned the color back in.
The only other thing I did was to select each girl's face individually and reduced the Cyan as well as tweaking the Magenta and Yellow. Here's another correction that I did.
Hopes this helps some.

Dave
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Last edited by Duv; 07-12-2005 at 09:29 PM.
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  #9  
Old 07-12-2005, 06:26 PM
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realaqu realaqu is offline
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I remember Katrin Esimann's book have a case just like this, you can get her book named retouching and restoration, I ll put a cololr layer to to balance the white, and handle face, shirts, kids in different layers. I didn't do it right now, but I ll give a go later, Floria always give us something amazing,


realaqu

ok, I finished my work.
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Last edited by realaqu; 07-12-2005 at 06:48 PM.
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  #10  
Old 07-12-2005, 07:58 PM
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Thanks Duv and Realaqu.

Iíve tried to ask Flora how to do this and she can do it by eye
Iíll bet she corrected this picture in one Hue/Sat adjustment layer with a layer mask
I donít think Flora can even see the problem Iím having (Some people are just born gifted)

Obviously the left side of this picture is too red and I can handle that with levels and a graduated mask (to some extent)

Itís the final bit of magic that Flora can do that Iím missing.

I understand how to correct the black and white points (I get a bit lost with the midtones)

My picture seems to be missing some green. But I could not increase that using levels
Because I was at the end of the Adjust.
So I go to Hue/Saturation then I get lost as the eyedropper even in HSL does not seem to give me any numbers that mean anything. In fact in this picture, when I matched the HSL values from the right side of the picture to the left side the picture became black and white.

Should I colour correct the right side of the picture first or match the left side to the right side first?

Ken
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