Two dimensional rotation of sub-sampled color space images

Details Two dimensional rotation of sub-sampled color space images Two dimensional rotation of sub-sampled color space images

2006-04-10

2008-12-02

Sajous, Wesner (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S657000, C345S565000, C345S589000, C345S649000, C382S162000, C382S296000, C382S305000, C348S557000, C348S583000, C348S567000

Reexamination Certificate

active

07460135

ABSTRACT:
In a method and system for controlling rotation of a color image stored as sub-sampled image data in a memory, a controller includes a finite state machine (FSM) operable to fetch the sub-sampled image data and provide the sub-sampled data as a plurality of pixels to form the color image having a predefined angle of rotation. The FSM provides a predefined address of sub-sampled image data describing the color image stored in the memory to an addressing unit. The addressing unit is operable to read twice the sub-sampled image data located at the predefined address. A memory device is operable to push each read instance of the sub-sampled image data. A pipeline controlled by the FSM is operable to pull and selectively read the sub-sampled image data from the memory device for generating the plurality of pixels.

REFERENCES:
patent: 5633952 (1997-05-01), Outa et al.
patent: 2003/0039406 (2003-02-01), Chapin et al.
patent: 2005/0275725 (2005-12-01), Olsson et al.
patent: 2007/0011023 (2007-01-01), Silverbrook

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