Unfortunately, I've have this artifact in each version (from 0.7 till now).
The module responsible seems to be enblend. Therefore, happens in enblend
3.X and 4.

In my experience, 2 factors seem to contribute to this; very wide images
(12k to 15k wide and up seens to be the starting point) and also 360 degrees
* 180.

When I get this and need the resolution, I run it twice, with crops on each.
So "kind of" left part and right part (with some overlapp) and merge them
back together.

Hope this helps.

nick

On Wed, Apr 14, 2010 at 2:31 PM, awbrody <[email protected]> wrote:

> I often get a few 2-3 pixel tall lines stretching much of the way if
> not all the way across the image when I stitch a full resolution
> (about 24,000 pixels wide) , multi-row panoramas. If I do exposure
> correction the lines are white and if I do no exposure correction the
> lines are thinner (1 pixel high) but still there. This artifact stared
> appearing with versions from  2009 and continue with versions from
> 2010. I have an intel iMac running OSX 10.6.3. My camera is a Sony DSC
> R1. The images I use are all maximum resolution 8 bit tiffs. The shots
> are taken with manual controls all setting. I use a Manifrotto
> spherical panorama head and I level the head fairly well, sometimes
> difficult on a glacier. When I take my shots I have about 15% overlap
> on each edge with 12 shots for the full 360 degrees. I take 12
> horizontal, 12 pointed up 30 degrees, 6 pointed up 60 degrees, 12
> pointed down 30 degrees and a series of hand held nadir shots. The
> lines are always below the horizon.
>
> Does anyone else have this same problem? What is the latest version
> that does not show this artifact?
>
> Thanks for any advice
>
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