My apologies John and Carl.  With both of you telling me it should work I 
decided to try again - even though I was convinced I did as you directed 
and it didn't work.  I tried again, and it worked beautifully.  
Unfortunately, I don't know what I (or Hugin?) did wrong before, but it's 
working nicely now.  Thanks for prodding me along.

Now that the blending anomaly is gone my interest has move to the shade of 
blue it selected for the sky.  It picked a paler shade of blue that I would 
like.  Is there a way to direct it to pick a darker exposure?

Calvin



On Wednesday, April 4, 2012 4:57:13 AM UTC-6, zarl wrote:
>
> JohnG schrieb am 04.04.12 02:40:
> >
> > I'm very disappointed to hear that the zenith stack include mask
> > didn't work ... in theory this should be an extremely elegant
> > workaround for Enblend's inability to read across the poles :-(
>
> It should work. If not, I'd check if the stack is properly defined in 
> the images tab, i.e. they have the same number in the "Stack Number" row.
>
> It works so nicely for me that I almost never fall back to masking my 
> input images in Photoshop.
>
> >> On Apr 3, 10:58 pm, Calvin McDonald<c...@ckmcdonald.com>  wrote:
> >>> On Saturday, March 31, 2012 6:15:46 AM UTC-6, zarl wrote:
> >>>
> >>>> Another option could be to force hugin to use the "sky" parts of your
> >>>> zenith shot with an "include" mask. And since you're using stacks you
> >>>> should define the mask to include every other image in the same stack
> >>>> (there's a drop down list for that in the mask tab).
> >>>
> >>> It seems non-intuitive to me to set an include mask on all images in 
> the
> >>> stack to solve the problem.  It would seem that setting an include 
> mask on
> >>> the one stack image with the properly exposed sky would be right. 
>  However,
> >>> I tried both ways (mask on 1 image, mask on all 7 in the stack) and 
> neither
> >>> worked.  Both produced the same bad result as pictured in my first 
> post.
>
> Calvin, make sure you explicitely set the mask in the drop-down list 
> "Mask type:" to -> "Include region from stack"
> (I'm not sure if this is indeed an intuitive phrase)
>
> Carl
>
>
On Wednesday, April 4, 2012 4:57:13 AM UTC-6, zarl wrote:
>
> JohnG schrieb am 04.04.12 02:40:
> >
> > I'm very disappointed to hear that the zenith stack include mask
> > didn't work ... in theory this should be an extremely elegant
> > workaround for Enblend's inability to read across the poles :-(
>
> It should work. If not, I'd check if the stack is properly defined in 
> the images tab, i.e. they have the same number in the "Stack Number" row.
>
> It works so nicely for me that I almost never fall back to masking my 
> input images in Photoshop.
>
> >> On Apr 3, 10:58 pm, Calvin McDonald<c...@ckmcdonald.com>  wrote:
> >>> On Saturday, March 31, 2012 6:15:46 AM UTC-6, zarl wrote:
> >>>
> >>>> Another option could be to force hugin to use the "sky" parts of your
> >>>> zenith shot with an "include" mask. And since you're using stacks you
> >>>> should define the mask to include every other image in the same stack
> >>>> (there's a drop down list for that in the mask tab).
> >>>
> >>> It seems non-intuitive to me to set an include mask on all images in 
> the
> >>> stack to solve the problem.  It would seem that setting an include 
> mask on
> >>> the one stack image with the properly exposed sky would be right. 
>  However,
> >>> I tried both ways (mask on 1 image, mask on all 7 in the stack) and 
> neither
> >>> worked.  Both produced the same bad result as pictured in my first 
> post.
>
> Calvin, make sure you explicitely set the mask in the drop-down list 
> "Mask type:" to -> "Include region from stack"
> (I'm not sure if this is indeed an intuitive phrase)
>
> Carl
>
>

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