"self" <me@[EMAIL PROTECTED]
> wrote in message
news:MPG.21b68ae1671a0ada9896c0@[EMAIL PROTECTED]
> How do I duplicate an underwater photo of a color wheel?
>
>
> I want to try to correct underwater photos that I took to reflect the
> fact that some colors do not show correctly at depth. I took a color
> wheel to a depth of 50 feet and photographed it using natural light. [ I
> did not use a flash.] I then took the resulting photo of the color wheel
> and tried to use Photoshop to alter the color so that it would match the
> original.
> I can't seem to get the photo of the red sector to look even remotely
> like the red original. I do not know much about Photoshop, is my
> approach wrong or did I overestimate the ability of Photoshop to restore
> the original colors?
>
> --
> Pat
This is not unlike the colour casts you see in old photos, caused by
chemical reactions to light in the different layers of the emusion.
Some success can be achieved by using the levels command, (ctrl +l)
adjusting each individual channel in turn, not the master.
With the command active and a channel selected, hold down the alt key
whilst
dragging the right hand triangle (highlight)to the left.When you hold down
the alt key, the channel window will take on the colour of the selected
channel and when you drag the triangle to the left, you will see a break
through (area of black appear) when the highlights come into range in that
channel. You can also do the same for the shadows (left hand triangle,
drag
to the right.).
Whe you have corrected all three channels, check your result in
Image>Adjustments>Variations (highly underated for colour correction) and
tweak accordingly.
TWK
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