Method for editing character bitmaps at small sizes

Details Method for editing character bitmaps at small sizes Method for editing character bitmaps at small sizes

G - Physics

09

G

375/32

G09G 5/00 (2006.01) G09G 5/24 (2006.01)

Patent

CA 2020311

ABSTRACT An improved method is provided for displaying a character on a raster device at relatively low resolution by identifying regions of the character that improperly touch other regions of the character and modifying the display of that char- acter to move or delete pixels which decrease legibility of the character. These topological errors in character bitmaps are detected and corrected by (1) enumerating the pixels in an order determined by the path topology, (2) searching for sequences of pixels corresponding to a pointed feature in the character that touches other parts of the character bitmap, and (3) editing the bitmap to fix such incorrect contacts.

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