Type size dependent anti-aliasing in sub-pixel precision...

Details Type size dependent anti-aliasing in sub-pixel precision... Type size dependent anti-aliasing in sub-pixel precision...

2007-05-29

2007-05-29

Zimmerman, Mark (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S612000

Reexamination Certificate

active

10970156

ABSTRACT:
Methods and systems for selecting different anti-aliasing filters to be applied to objects of image data rendered with pixel sub-component precision based on the attributes of the objects of the graphics image. For example, when rendering a character traditional anti-aliasing applied in the direction parallel to the striping of the pixel sub-components is adapted to the unique requirements of different character font sizes such that a large amount of anti-aliasing is applied to large font sizes while a small amount of anti-aliasing is provided for characters at small font sizes. Displaced sampling is utilized to determine the alpha values for a plurality of vertical samples for each RGB pixel sub-component. The selected anti-aliasing filter is applied to the alpha values to determine the luminous intensity values of the RGB pixel sub-components.

REFERENCES:
patent: 6650372 (2003-11-01), Toft

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