Content-Aware Image Rotation

A computer readable media having stored thereon processor-executable instructions that, upon execution, configure a processor to perform acts comprising:

• creating an input mesh on an input image, the input image being tilted relative to a desired orientation;
• optimizing the input mesh according to an energy function having a rotation preservation term, a line preservation term, a shape preservation term, and a boundary preservation term to create an optimized mesh;
• and
• deforming the image according to the optimized mesh to produce a corrected image, wherein lines in the corrected image are rotated relative to lines in the input image.

A method comprising:

• receiving at an image correction system an image comprising image content, the image content being rotated by a rotation angle;
• identifying lines corresponding to linear features in the image content;
• grouping the lines in a plurality of groupings comprising one or more oblique groupings and at least one of a horizontal grouping or a vertical grouping;
• deforming the image content to create a corrected image by rotating the lines in the at least one of the horizontal grouping or the vertical grouping by the rotation angle and rotating the lines in each of the one or more oblique groupings by an angle other than the rotation angle.