Thank you Marshall. I have done that method of color balance
before. I believe however it is meant for 2D images rather than the two
combined anaglyph channels together. You can still change the color
but it is not always easy to get the correct resulting hue. I just tried
it with this picture. Doing exactly what you suggested gave the image a
blue-ish tint. I persisted, trying all 3 eye-droppers and
combinations. I finally took the middle eyedropper and clicked on various
shades until I obtained the best outcome I could, which to be honest, was not
much different than my original result. The flesh color still is not great
but the overall tint may be a little better. I'll attach it here for your
inspection.
When I colored over the background, I basically used the same background
color but of course without all the original varying shades that resulted in
real-life conditions. I used the same color to help hide areas I may have
missed as I was not planning on redoing everything. After you start this
process however, things don't always turn out as you hoped.
As for the over-exposure, you can see from the 2D image I included that the
original was actually underexposed, due to not using a flash (not
allowed). I may have overcompensated a little but for me the result was
not that bad.
My method for most of these stereos has been...
Align in SPM as a crossview, save as TIF. Open in PS-CS5 as a
side-by-side format, fix anomalies, and auto correct colors, save as TIF.
Open up in SPM again, fix any existing mis-syncs using the clone tool, set the
scene further behind the stereo window so it views better as an X-View, add
final touches (border, signature, etc.), save a crossview copy, then while
still in SPM change format to anaglyph, delete signature and border, bring
the scene closer to the stereo window to reduce subsequent anaglyph
ghosts, again add final touches (border, signature, etc.) for the different
window placement, transfer to IrfanView ("G" key) and "try" to color balance
better, especially for flesh colors after using Dubois, also adding contrast if
needed. This usually improves the overall color from the Dubois greenish
tint but may not result in a perfect color balance.
Brian
----- Original Message -----
Sent: Friday, January 28, 2011 8:11
AM
Subject: Re: [Anaglyphs] Mallard
Pair
Brian--
I made a copy of this picture, opened it in
Photoshop and tried out my Super-Duper Quick Color Fixer
technique.
I know that I've mentioned this before, but you
might want to try this quick fix on your own, for when I applied
it to your picture it greatly restored more
natural colors while vastly toning down the excessive green.
Here again is the fix. Open the view in
Photoshop (I use CS5 Extended). At the top select Image>Levels.
Then
click on the MIDDLE eye dropper and touch
it the rear wall of the picture. Voila, most of the green will
be
vanquished and colors will appear more
natural! I also adjudged that the overall view is
overexposed,
and that can be fixed easily, although I made
no attempt at correcting that aspect.
Marshall
(401K)