Figure 21.
Content-aware projection of wide-angle photography, from Carroll et al. (2009). (a) An input wide-angle linear perspective photograph. (b) A stereographic projection computed from the input photo, which creates new distortions. (c) A content-aware projection computed from the input photo, by warping the input photo, in a way that preserves straight lines and other objects, while allowing textureless regions to warp.
