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Rendering Handwritten Characters

Approach: The majority of fonts in use today represent glyphs as outlines formed by knots and splines. At rasterization time, these outlines are scaled to the desired size on the pixel grid and each pixel lying within the outline is turned on. Hinting significantly improves the readbility of text by giving the typographer finer control over the final appearance of each glyph beyond this simple filling algorithm. With these grid-fitting instructions, the typographer can specify rendering constraints (between knots of a glyph or between a knot and a gridline) to prevent much of the aliasing that would otherwise occur at small point sizes [2]. Though it is a tedious manual process, hinting is essential for clear rendering of glyphs. Stroke width uniformity, stroke continuity, glyph spacing: all are controlled by hinting.