enblend mask optimization failures

I'm also uploading enblends verbose output. It looks like for this image pair, it thinks there are 5 seams to optimize rather than just 2 as there should be.

I think this may be related to the --wrap=both option to enblend. One of the images in this particular blending had part of its extent wrapped around the edges of the image file. I think that's whats causing enblend to think there are more seams and coming up with the bad result.

By the way, the bad result persists with seam optimization turned off.

The failure occurs with or without the --wrap=both or --wrap=none. But it still appears related to the image overlaps crossing around the panorama boundary.

You are correct about the loops. They are caused by the seam line optimizers, as confirmed by Christoph Spiel. The optimizers require fixes to cope with the new algorithm in some cases. As a temporary workaround, one can use a fine mask or the old primary seam generator, which is better compatible with the optimizers.

Seam line wrapping is not yet supported with the graph-cut algorithm, so it may or may not be the cause of this behaviour.

If possible, please attach the images for debugging.

Why was this changed to 'Invalid'?

@Brent
The status was changed to 'Invalid' only in the Hugin bug tracker (because this can't fixed in Hugin). The ticket is still open in enblend bug tracker.