A High-Speed Contour Fill Method for Character Image Generation
K. Nakashima, M. Koga, K. Marukawa, Y. Shima and Y. Nakano
IEICE Trans, Inf. & Syst., Vol.E77-D [7], pp.832-838, (1995)
Abstract
This paper describes a new, high-speed contour-fill method for
alpha-numeric and Japanese Kanji characters developed to generate digital bitmap
image (binarized image) patterns from contour lines. The contour lines are
expressed by Freeman's chain code. We call this method the Improved Edge-flag
method. The speed of this method is increased by using an edge-flag list which
stores the coordinates of the edge-flag pixels. A comparison of two conventional
contour-fill methods with our methods shows that ours is about 4-8 times faster
in filling character contours
[Miscellaneous]
[Research Themes of Prof. Nakano.]
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First Written Before June 17, 1998
Transplanted to KSU Before June 19, 2003
Transplanted to So-net April 22, 2007
Last Update April 22, 2007
© Yasuaki Nakano 1998-2007