am be2f475f: Lift the upperbound of the up-scaling when view image.

Merge commit 'be2f475fe49538e38753ad391fb3176f9b0d1c69' into eclair-mr2

* commit 'be2f475fe49538e38753ad391fb3176f9b0d1c69':
  Lift the upperbound of the up-scaling when view image.