Individual channel filtering of palettized image formats

Details Individual channel filtering of palettized image formats Individual channel filtering of palettized image formats

2011-03-08

2011-03-08

Wu, Xiao M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S589000, C345S602000

Reexamination Certificate

active

07903124

ABSTRACT:
A method, system, and a computer program product for filtering palettized image formats are presented. In an embodiment, data is retrieved from a palette of an image. Data associated with a channel of the palette is filtered, and stored, for example, together with a pixel buffer of the image to form a filtered image. Additionally, a method, system, and a computer program product for displaying images stored in a modified palettized image format are presented. In an embodiment, data is retrieved from a palette and from a pixel buffer of an image stored in modified palettized image format. Filtered pixels of the image are formed by combining, for each pixel in the pixel buffer, data retrieved from the palette with filtered data, retrieved from the pixel buffer. The modified palettized image is rendered on a display by displaying the filtered pixels.

REFERENCES:
patent: 5883633 (1999-03-01), Gill et al.
patent: 6037982 (2000-03-01), Coelho
patent: 2003/0011610 (2003-01-01), Kitsutaka
patent: 2005/0168620 (2005-08-01), Shiraishi

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