Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Patent
1995-10-23
1999-08-24
Feild, Joseph H.
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
345436, 345147, 345428, G06T 100
Patent
active
059430630
ABSTRACT:
A method for creating anti-aliased characters on a computer output device includes the steps of generating a call from a client process for a character to be rendered, rendering the character at a high resolution, and aligning stems of the character with a coarse grid corresponding to the resolution of an output device. The step of aligning the high resolution rendered stems to the coarse grid provides for an anti-aliased output with balanced stems. A method for rendering a character includes the steps of determining a device resolution and a number of greyscales to be displayed by a digital output device, determining a coarse grid and a high-resolution grid, developing character information concerning a character to be rendered, creating an initial bitmap of the character from the character information at the resolution of the high-resolution grid, and aligning stems of the initial bitmap with the coarse grid to create a coarse grid aligned high-resolution bitmap.
REFERENCES:
patent: 4675830 (1987-06-01), Hawkins
patent: 4907282 (1990-03-01), Daly et al.
patent: 5299308 (1994-03-01), Suzuki et al.
patent: 5544294 (1996-08-01), Cho et al.
Adobe Systems Inc.
Feild Joseph H.
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