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[Bug 1789054] [NEW] Strange red color tint appears when blending images.

 

Public bug reported:

Hey,
When tring to stitch some spherical panoramas, (mainly with blue sky mid day),
after photo align in hugin, I can see both on preview and on the stitch panorama jpeg, a red color tint on some parts of the image, that isn't there on the original photo.
for some reason, Hugin adds a red color cast when blending the photos.
The red color cast CAN NOT be seen on the original files, it's become visible only after the photo alignment.
Can't figure where it's coming from or why Hugin addes it.
I can send the original photos and the stitched panorama.

Operating System: Windows 7 (build 7601, Service Pack 1), 64-bit edition
Architecture: 64 bit
Free memory: 11795404 kiB
Hugin ver. 2018.0.0

** Affects: hugin
     Importance: Undecided
         Status: New

** Attachment added: "ScreenShot"
   https://bugs.launchpad.net/bugs/1789054/+attachment/5180745/+files/08.jpg

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Title:
  Strange red color tint appears when blending images.

Status in Hugin:
  New

Bug description:
  Hey,
  When tring to stitch some spherical panoramas, (mainly with blue sky mid day),
  after photo align in hugin, I can see both on preview and on the stitch panorama jpeg, a red color tint on some parts of the image, that isn't there on the original photo.
  for some reason, Hugin adds a red color cast when blending the photos.
  The red color cast CAN NOT be seen on the original files, it's become visible only after the photo alignment.
  Can't figure where it's coming from or why Hugin addes it.
  I can send the original photos and the stitched panorama.

  Operating System: Windows 7 (build 7601, Service Pack 1), 64-bit edition
  Architecture: 64 bit
  Free memory: 11795404 kiB
  Hugin ver. 2018.0.0

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