Method of compressing JPEG files

Details Method of compressing JPEG files Method of compressing JPEG files

1998-07-20

2000-12-26

Grant, II, Jerome

Image analysis

Color image processing

Compression of color images

382166, 382170, G06K 900

Patent

active

061671533

ABSTRACT:
A method and apparatus for compressing digital image data to improve the efficiency of serial data transmission is disclosed. More specifically, the present invention accomplishes image compression by performing the most complex portions of a standard compression technique on a subset of the originally provided data. The invention includes a fast JPEG compressor based on a modified two-dimensional discrete cosine transform.

REFERENCES:
patent: 4910608 (1990-03-01), Whiteman
patent: 5166987 (1992-11-01), Kageyama
patent: 5642438 (1997-06-01), Babkin
patent: 5699170 (1997-12-01), Yokose et al.
patent: 5703965 (1997-12-01), Fu et al.
patent: 5737450 (1998-04-01), Hajjahmad et al.
patent: 5745251 (1998-04-01), Yamagami
patent: 5838823 (1998-11-01), Ancessi

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