  Wide-angle images gained a huge popularity in the last years due to the
development of computational photography and imaging technological advances.
They present the information of a scene in a way which is more natural for the
human eye but, on the other hand, they introduce artifacts such as bent lines.
These artifacts become more and more unnatural as the field of view increases.
  In this work, we present a technique aimed to improve the perceptual quality
of panorama visualization. The main ingredients of our approach are, on one
hand, considering the viewing sphere as a Riemann sphere, what makes natural
the application of M\"obius (complex) transformations to the input image, and,
on the other hand, a projection scheme which changes in function of the field
of view used.
  We also introduce an implementation of our method, compare it against images
produced with other methods and show that the transformations can be done in
real-time, which makes our technique very appealing for new settings, as well
as for existing interactive panorama applications.
