1. A method for reducing the obtrusiveness of artifacts appearing in a glyph shape code image space, comprising: encoding digital data values as a glyph shape code, said code being composed of glyphs having shapes that encode digital data values, such that each distinct data value that is encoded by said code is represented by the shape of a respective glyph, said glyphs being spatially distributed in a bitmap image space; analyzing said bitmap image space for determining the presence of artifacts within said bitmap image space; and generating a raster image of said bitmap image space, wherein not less than one dot is placed within not less than one of the artifacts.