Smudged Area

[Jeffrey Markham]

I use Hugin to create 360 panoramas with my drone. Sometimes it works great. Other times a portion of the resulting image has a smudged look even though it looked fine in the preview, as in the example below. Does anyone know why this is occurring? 

[Luís Henrique Camargo Quiroz]

   Hi Jeffrey,

   Maybe you have many images with big superposition in the blackened region, and in this case Enblend may "discard" some "redundant" (although not really) region. If this is the case, you can use exclude masks to eliminate the big superposition, but not completely, of course; leave a smaller superposition.

  I hope this helps, let us know!

 

Em qua., 5 de ago. de 2020 às 14:34, Jeffrey Markham <auto...@gmail.com> escreveu:

I use Hugin to create 360 panoramas with my drone. Sometimes it works great. Other times a portion of the resulting image has a smudged look even though it looked fine in the preview, as in the example below. Does anyone know why this is occurring? 

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Luis Henrique Camargo Quiroz
http://luishcq.br.tripod.com - http://www.christusrex.org/www2/cantgreg
http://panoramaslh.net/

[Bruno Postle]

Hi Jeffrey, this is an old bug in enblend (the tool that joins the photos together into the final output).

You could try using the internal Hugin blender, which doesn't have as many features, but also doesn't suffer from this problem.

Otherwise, the workaround I always use when I encounter this, is to find the problematic photo and change its position in the list of photos in the Hugin project - enblend processes seams in order, and this will change the seam endpoints just enough to make the problem go away.

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Bruno

[Jeffrey Markham]

Bruno,

Moving the order of the photos around worked perfectly. Thanks so much.

-Jeff

[Klaus Foehl]

Hello all,

I also encouter this bug every now and then. It is more likely to show up when I use larger image width, say beyond 16000 or 18000. Small changes to the image orientation (yaw) can help. Changing the image size, usually I decrease the size by 5 to 10%, solves the issue most of the times.

This smudge usually goes towards black, but sometimes goes to a non-black colour.

Cheers,

Klaus

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