Rotation and Clipping Mechanism
AssigneeRicoh Company, Ltd.
InventorsAlexandru-Virgil Panek, John Thomas Varga
Life of this patent
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Abstract
A method is disclosed. The method includes intersecting a clip polygon with a source image, determining destination coordinates of the clip polygon, rasterizing the clip polygon, determining a bounding box, dividing the bounding box into a plurality of logical destination tiles, processing the destination tiles to determine coordinates of source tiles corresponding to each of the destination tiles and performing rotation processing of the source tiles, wherein each tile is processed independently.
Claims20
A machine-readable medium including instructions, which when executed by a machine, causes the machine to perform image processing to:
- intersect a clip polygon with a source image;
- determine destination coordinates of the clip polygon;
- rasterize the clip polygon;
- determine a bounding box comprising a section of a destination sidemap;
- divide the bounding box into a plurality of logical destination tiles;
- process each of the logical destination tiles to determine coordinates of source tiles in the source image corresponding to each of the logical destination tiles by performing an inverse transformation;
- and
- perform rotation processing of the source tiles, wherein each tile is processed independently.
A system comprising one more processors to perform image processing to intersect a clip polygon with a source image, determine destination coordinates of the clip polygon, rasterize the clip polygon, determine a bounding box comprising a section of a destination sidemap, divide the bounding box into a plurality of logical destination tiles, process each of the logical destination tiles to determine coordinates of source tiles in the source image corresponding to each of the logical destination tiles by performing an inverse transformation and perform rotation processing of the source tiles, wherein each tile is processed independently.
Dependencies are inferred from the claim text.