PanoTools:
Re: My attempt to eliminate vignetting effect
neugierigru 2004-Nov-26 15:22:55
--- In #removed#, "Erik Krause" <#removed#>
> There is one danger with adjusting image brigtness: You need an
> anchor image, from where the amount of adjustments adds up with
each
> image you move away from that anchor. This quickly leads to colors
or
> brightness way off at the ends of a large pano.
>
> I have currently no idea how to avoid this - especially if you have
> multi row panoramas. For single row I usually use a gradient that
> goes from white to black across the whole image as a mask for a
> linked adjustment layer.
I think it is possible to find the brightest image in panorama and
then use it as anchor image. All others will be more and more dark -
but this is what it is in nature :-) Or alternatively one can try to
use the most information from every image and "equalize" them in
brightness using the in-process generated gradient layer - it is
possible to recreate the needed data from the images histograms. This
is what you do - and it can be done automatically too, I hope.
I could try to write software based on this ideas but I am not so
good programmer and it could take much less time for some advanced
programmer.
Best regards,
Valeriy Mikheew.
------------------------ Yahoo! Groups Sponsor --------------------~-->
Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar.
Now with Pop-Up Blocker. Get it for free!
http://us.click.yahoo.com/L5YrjA/eSIIAA/yQLSAA/.Cr1lB/TM
--------------------------------------------------------------------~->
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/PanoTools/
<*> To unsubscribe from this group, send an email to:
#removed#
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/