Method and apparatus for scaling image data having associated tr

Details Method and apparatus for scaling image data having associated tr Method and apparatus for scaling image data having associated tr

1996-06-24

1999-07-06

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382283, 382299, 345119, 345154, 345199, 348587, 348590, 395114, 395131, 395502, G06K 932

Patent

active

059206594

ABSTRACT:
The resolution of one or more components of image data is changed to generate scaled image data and transparency processing is applied to the scaled image data, wherein the transparency processing is taken into account during the changing of the resolution of the image data. In a preferred embodiment in which a video codec applies transparency processing during the compression of subsampled video data, the capture processor applies the same transparency mask during data subsampling to decrease color-bleeding effects that may otherwise appear in the decoded video stream.

REFERENCES:
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patent: 5400081 (1995-03-01), Chaplin
patent: 5408542 (1995-04-01), Callahan
patent: 5461679 (1995-10-01), Normile et al.
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patent: 5471563 (1995-11-01), Dennis et al.
patent: 5546103 (1996-08-01), Rhodes et al.
patent: 5577191 (1996-11-01), Bonomi
patent: 5604514 (1997-02-01), Hancock
patent: 5640543 (1997-06-01), Farrell et al.
John C. Russ. (The image processing handbool), 1995, p. 155-165.

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