Abstract
In certain cases a font, as defined by a set of small raster images, can be scaled by first extracting the linear features that define each character. These can be treated as graphical vectors and scaled, translated, and rotated in an arbitrary fashion. The visual precision of this method depends on the size of the original front templates.
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Arcelli C, Massarotti A (1975) Regular arcs in digital contours. Comput Graph Image Proc 4:339–360
Bongiovanni FL, Zorat A (1976) The discrete equation of the straight line. IEEE Trans Comput C-24:310–313
Casey RG, Friedman TD, Wong KY (1982) Automatic scaling of digital fonts. IBM J Res Dev 26:657–666
Chakravarty IA (1981) A single pass chain generating algorithm for region boundaries. Comput Graph Image Proc 15:182–193
Kwok P, Witten I (1986) Reducing halftone pictures. Dep Comput Sci Rep 86-251-25 (December 1986)
Lunscher WHHJ, Beddoes MP (1987) Fast binary image boundary extraction. Comput Vision Graph Image Proc 38:229–257
Navatia R, Babu KR (1980) Linear feature extraction and description. Comput Graph Image Proc 13(3)
Ossanna JF (1976) Nroff/Troff user's manual. Comput Sci Tech Rep no 54. Bell Laboratories
Parker JR (1988) Extracting vectors from raster images. Comput Graph 12(1) (January 1988)
Pavlidis T (1981) Contour filling in raster graphics. Comput Graph 15(3):29–36
Plass M, Stone M (1983) Curve-fitting with piecewise parametric cubics. Comput Graph 17(3) (July 1983)
Rosenfeld A (1974) Digital straight line segments. IEEE Trans Comput C-23(12) (December 1974) pp 1264–1269
Wu X, Rokne JG (1987) Double-step incremental generation of lines and circles. Comput Vision Graph Image Proc 37:331–344
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Parker, J.R. Scaling low-resolution bitmap fonts using linear feature extraction. The Visual Computer 6, 74–78 (1990). https://doi.org/10.1007/BF01901068
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DOI: https://doi.org/10.1007/BF01901068