** Changed in: eog
Status: Confirmed => Expired
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https://bugs.launchpad.net/bugs/1746146
Title:
eog rotate&save moves small strip of pixels to other side of image
Status in Eye of GNOME:
Expired
Status in eog package in Ubuntu:
Triaged
Bug description:
I have been using Hugin to assemble panoramas, but until this one,
they were all horizontal (all photos to be assembled right to left).
This one contained four images vertically oriented, so to line them
up, I copied them and rotated them 90 degrees counterclockwise with
eog and saved through eog, and then pointed Hugin at the rotated
images (Possibly Hugin could make a vertical panorama without my doing
this, but I didn't try...)
After the panorama image was complete, I copied it and rotated it into
a vertical orientation again (90 degrees clockwise) and saved through
eog.
Imagine my surprise, when I looked at the final image, and saw a strip
of pixels on the right that didn't look right.
Upon closer inspection, I found that they seemed to match the pixels
on the left edge.
When rotating, the image appears correct. It is only after saving,
and re-invoking eog on the image that the problem is visible.
It is not a display problem, as the copied/moved pixel columns show up
when the image is shown with ImageMagick, and GIMP.
With GIMP, by blowing up the display to 400%, and watching the pixel
coordinates as I move my mouse from the left to the right over the
false pixel columns, it appears that the number of pixel columns
copied or moved is 7.
Upon further research, When I have GIMP blow up both images equally, it seems
clear that the pixel columns are being cut off from the left side of the image,
and attached to the right side.
(In the attached images, if you look at the "C" on the left (about 75% of the
way down, at the edge), you will see that it lines up almost exactly with the
edge of the image, yet in the horizontal image, there is a gap between the edge
and the "C" (that appears also to be about 7 pixels wide))
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scott@scott-Asus-M2N68-AM-PLUS:~$ uname -a
Linux scott-Asus-M2N68-AM-PLUS 4.13.0-32-generic #35-Ubuntu SMP Thu Jan 25
09:13:46 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
scott@scott-Asus-M2N68-AM-PLUS:~$ lsb_release -dsc
Ubuntu 17.10
artful
scott@scott-Asus-M2N68-AM-PLUS:~$ echo $DESKTOP_SESSION
QLubuntu
scott@scott-Asus-M2N68-AM-PLUS:~$ eog --version
GNOME Image Viewer 3.26.1
-------------------------------------------------------------------------
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: eog 3.26.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: LXQt
Date: Mon Jan 29 20:54:14 2018
InstallationDate: Installed on 2017-11-06 (85 days ago)
InstallationMedia: Lubuntu-Next 17.10 "Artful Aardvark" - Beta amd64
(20171014)
SourcePackage: eog
UpgradeStatus: No upgrade log present (probably fresh install)
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