A High-Speed Character Contour-Fill Method Using an Edge-Flag List
نویسندگان
چکیده
This paper describes a new, high-speed contourf i l l method for alpha-numeric and Japanese Kanji characters developed to generate digital bitmap image (binary 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 method shows that O L I ~ S is about 4-8 times faster in filling character contours.
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