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[rew <681292@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

In bug 679092 a user had a nice PANO-head setup where he could take 20
pictures in 18 degree increments.

Of course you want to be sure you didn't miss the first image, so
instead of taking 20 pictures you take 21. Then when you want to do HDR,
you'll shoot 3 images each. The first and last image end up overlapping
enough to be detected as a "stack".

Another reason to have this overlap would be to be sure that you can
edit out moving targets. With the normal progress there are only a few
seconds between a shot and the next one in the next position. But for
the first and last image a 20x longer interval is observed. So taking an
extra set allows you to match them appropriately.

The result is that stacks are available: 0-360 degrees inclusive at 18
deg intervals, with two stacks as 0 and 360 overlapping.

This is (was?) not detected and enfuse was ordered to consider it as one
stack.

I think that hugin should be able to detect this situation, and create
two stacks.

Failing that, it should at least warn when the stacks are of differing
height. (stack heigth =3 for positions 18 - 342 degrees, but stackheight
= 6 for the stack at 0/360 degrees.

NOT tested on latest hugin.

- To reproduce copy over the first three images of a normal 360 degree
pano, and place them at the end and see what happens.

** Affects: hugin
     Importance: Wishlist
         Status: Triaged

-- 
Double exposure stack should warn. 
https://bugs.launchpad.net/bugs/681292
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Status in Hugin - Panorama Tools GUI: Triaged

Bug description:
In bug 679092 a user had a nice PANO-head setup where he could take 20 pictures in 18 degree increments. 

Of course you want to be sure you didn't miss the first image, so instead of taking 20 pictures you take 21. Then when you want to do HDR, you'll shoot 3 images each. The first and last image end up overlapping enough to be detected as a "stack". 

Another reason to have this overlap would be to be sure that you can edit out moving targets. With the normal progress there are only a few seconds between a shot and the next one in the next position. But for the first and last image a 20x longer interval is observed. So taking an extra set allows you to match them appropriately. 

The result is that stacks are available: 0-360 degrees inclusive at 18 deg intervals, with two stacks as 0 and 360 overlapping. 

This is (was?) not detected and enfuse was ordered to consider it as one stack. 

I think that hugin should be able to detect this situation, and create two stacks. 

Failing that, it should at least warn when the stacks are of differing height. (stack heigth =3 for positions 18 - 342 degrees, but stackheight = 6 for the stack at 0/360 degrees. 

NOT tested on latest hugin. 

- To reproduce copy over the first three images of a normal 360 degree pano, and place them at the end and see what happens.