Metric conversion mechanism for digital images in a hierarchical

Details Metric conversion mechanism for digital images in a hierarchical Metric conversion mechanism for digital images in a hierarchical

1990-12-21

1994-12-13

Kuntz, Curtis

Facsimile and static presentation processing

Natural color facsimile

Color correction

358518, 348445, 348441, G03F 308

Patent

active

053733754

ABSTRACT:
A mechanism for facilitating metric conversion of digitized images intended for use with a multi-resolution, multi-application environment is integrated into the encoding and decoding mechanisms of the hierarchical data base, such that stored residual image files contain metric change information. In a preferred embodiment of the invention, the metric conversion operator is executed upon a relatively low spatial resolution file, thereby resulting in a substantial reduction in processing overhead, as advantage is taken of the availability of the reduced size of the lower spatial resolution base file within the hierarchical database, so that a metric conversion may be performed on the relatively small number of pixels within the base file, prior to up-converting the image to a relatively high spatial resolution image, such as a 2048.times.3072 pixel image for driving a high resolution digital thermal color printer.

REFERENCES:
patent: 4969204 (1990-11-01), Melnychuck et al.

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