Efficient processing of images in printers

Details Efficient processing of images in printers Efficient processing of images in printers

2007-01-30

2007-01-30

Popovici, Dov (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Communication

C358S001900, C358S001200, C358S001160

Reexamination Certificate

active

10323794

ABSTRACT:
A printer controller in which the image data received in indexed format is stored only in indexed format. The image data is converted to long format when required for rendering operations by using an appropriate lookup table. By storing the image data only in indexed format until the time of rendering, the memory requirements within a system may be minimized. According to another aspect of the present invention, floating point operations (providing higher precision) may be used in a interpreter block and fixed point operations (providing more speed) may be used in a rendering block, while avoiding/reducing image artifacts in upscaled images. A check is performed to determine whether a pixel in the upscaled image maps back to fall within the boundary of the source image, and corrective action is taken if the pixel does not fall within the boundary.

REFERENCES:
patent: 4639791 (1987-01-01), Masaki
patent: 5479587 (1995-12-01), Campbell et al.
patent: 6049343 (2000-04-01), Abe et al.
patent: 6115140 (2000-09-01), Bresler et al.
patent: 6285458 (2001-09-01), Yada
patent: 6792864 (2004-09-01), Piatt et al.
patent: 410207668 (1998-08-01), None

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