1. A method for reducing distortion in a source wide-angle image, captured using a wide-angle lens, to produce a two-dimensional mapped wide-angle image, the method comprising: calculating, with a processor, a spatially variable mapping, from the source wide-angle image to the two-dimensional mapped wide-angle image, using an identified one or more locally salient features to be rendered undistorted in the two-dimensional mapped wide-angle image, the calculating comprising: determining one or more weighted constraints, the weighted constraints based on the identified one or more locally salient features; defining a linear system of descretized constraint equations as a function of local salience of the one or more locally salient features; variably modifying the weighted constraints to solve the descretized constraint equations; and rendering, by the processor and using the calculated spatially variable mapping, the two-dimensional mapped wide-angle image, the rendered two-dimensional mapped wide-angle image having reduced distortion relative to the source wide-angle image.