Variational-Methods-Based Glyph Vectorization

We propose here an alternative solution for font scaling, consisting of automatic glyph conversion from raster to outline type, successive enlargement of outlinetype glyph, and eventually, rasterization of enlarged outlined type. This paper shows an approach for converting bitmap images of text glyphs into a vector format. The following work is concentrated on the first part of the algorithm (glyph vectorization). We formulate the above problem by variational means, where the input is the contour of the given glyph, consisting of the straight lines, and the output is the family of the third-order Bezier curves, outlining the given glyph and preserving its contour form.