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[Bug 678906] Re: fulla -s switch should add alpha channel

To: hugin-devs@xxxxxxxxxxxxxxxxxxx
From: tmodes <678906@xxxxxxxxxxxxxxxxxx>
Date: Sun, 26 Apr 2015 08:15:57 -0000
Reply-to: Bug 678906 <678906@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: hugin
       Status: Fix Committed => Fix Released

** Changed in: hugin
    Milestone: None => 2015.0beta1

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https://bugs.launchpad.net/bugs/678906

Title:
  fulla -s switch should add alpha channel

Status in Hugin - Panorama Tools GUI:
  Fix Released

Bug description:
  I tried creating a nona wrapper that called fulla to correct tca
  before each remapping, this didn't work because:

  1. the default is to scale the channels to avoid missing edge pixels,
  this changes the FoV and messes up the stitch.

  2. the -s switch turns off this scaling, but the off-colour edge
  pixels mess-up blending with enblend/enfuse.

  The -s switch should introduce 100% transparency where there is
  missing channel data, this means that the photos would retain their
  field of view and could still be used as input for nona.

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