Data processing

Details Data processing Data processing

2006-09-08

2010-12-07

Bella, Matthew C (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C345S472000, C345S660000, C348S581000, C358S001200

Reexamination Certificate

active

07848597

ABSTRACT:
In an image scaling method, an image (10) having an original row/column resolution NOis scaled into a scaled image (30) having a target row/column resolution NT. A filter set comprising α filters is provided, where α being equal to a quotient of the target resolution NTand a common denominator k of the original resolution NOand the target resolution NT. The common denominator k is a positive number larger than one. For at least one row/column (16/18) of image elements (12), a filtered image element (32) of the scaled image (30) is formed, for each filter in the filter set, by filtering at least one image element (12) of the at least one row/column (16/18) using the filter. This image element formation is repeated up to k times over the at least row/column (16/18) to form a scaled row/column (36/38) of image elements (32) of the scaled image (30).

REFERENCES:
patent: 6157376 (2000-12-01), Eglit
patent: 7277101 (2007-10-01), Zeng
Mitchell et al.,Reconstruction Filters in Computer Graphics, Computer Graphics, vol. 22, No. 4, Aug. 1988, pp. 221-228.

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