Public bug reported:

When opening an image that is "medium sized", but still much smaller
than screen resolution, eog sizes its window initially slightly too
small, causing scaling and consequently smoothing to be applied to the
image. This makes "crisp" images like figures, diagrams etc. look
unnecessarily blurred (and bad) at first sight. Increasing eog window
size a little fixes it so that the image is displayed 1:1 (pixel
perfect). Pressing Ctrl+0 also fixes the initial sizing of the image.

I see no way to turn off "Best fit" option by default in prefs. That
would probably fix it for smaller images, but is unpractical for larger
ones, where scaling is desireable.

Attached source image and screenshot of initial eog window (untouched)
shows the problem. My screen resolution is 1920x1200 and the source
image is 640x480, so it should not have been scaled by eog on first
display.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: eog 3.8.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-13.20-generic 3.11.6
Uname: Linux 3.11.0-13-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Sun Nov  3 11:47:00 2013
InstallationDate: Installed on 2013-11-01 (1 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MarkForUpload: True
SourcePackage: eog
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: eog (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug saucy

** Attachment added: "Initial eog window for a 640x480 image on a 1920x1200 
screen."
   
https://bugs.launchpad.net/bugs/1247564/+attachment/3899067/+files/eog-too-small-window-startup-on-1920x1200-screen.png

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https://bugs.launchpad.net/bugs/1247564

Title:
  Initial window size slightly too small causing scaling+smoothing on
  image

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