METHOD AND SYSTEM FOR RAPIDLY VECTORIZING IMAGE BY GRADIENT MESHES BASED ON PARAMETERIZATION

摘要

The present invention discloses a method for rapidly vectorizing an image by gradient meshes based on parameterization, which comprises the following steps: determining an image region to be vectorized (S1); converting the image region into amesh representation (S2); mapping the meshes to a planar rectangular region by parameterizing the meshes (S3); and generating a gradient mesh image according to the parameterization result of said meshes (S4). The present invention generates gradient meshes by converting an image region into meshesand by parameterization, so the gradient meshes are obtained completely automatically without the need for the user to give original meshesand moreover, the computation speed is improved significantly since nonlinear optimization is avoided. In addition, the method of the present invention can process image regions containing or not containing holes.