Image compressing method compressing an image into a compressed

Details Image compressing method compressing an image into a compressed Image compressing method compressing an image into a compressed

1993-08-12

1994-11-08

Rogers, Scott A.

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

358433, 348390, 348409, 348420, 348421, 382 56, H04N 1415, H04N 1417, H04N 713

Patent

active

053632052

ABSTRACT:
An image compression method which successively diminishes in size the image to form a compressed image. The compression is done by dividing an image into partial areas with equal size, calculating a mean pixel value in each area, and substituting the mean pixel value into the diminished image. The image is then re-enlarged in the same way, and the enlarged image is compared against the original image to determine error values. The error values and the diminished images are used to represent a compressed version of the original image.

REFERENCES:
patent: 4268861 (1981-05-01), Schreiber et al.
patent: 5020120 (1991-05-01), Weldy
Kou-Hu Tzou, "Progressive image transmission: a review and comparison of techniques", Optical Engineering, vol. 26, No. 7, Jul. 1987, pp. 581-589; see Section 4.1 on pp. 585-587, FIG. 8.
Hampel, H. et al., "Technical features of the JBIG standard for progressive bi-level image compression", Signal Processing: Image Communication, vol. 4, No. 2, Apr. 1992; see p. 106, right col., line 9-p. 108, left column, line 38; FIGS. 2, 3, 4.
Sanz, A. et al., "Analysis of predicting schemes in pyramidal image coding", ICASSP '89-Int. Conf. on Acoustics, Speech, and Signal Processing 1989; vol. 3, May 23, 1989, IEEE, pp. 1965-1968, see pp. 1966-1967, sections 2 and 3.
Wang, L. et al. "Reduced-difference pyramid: a data structure for progressive image transmission", Optical Engineering, vol. 28, No. 7, Jul. 1989, pp. 708-716, see entire document.
Ishibashi, S. et al. "Hierarchical Coding Method of Still Pictures with Component Separation", Electronics and Communications in Japan, vol. 70, No. 11, Nov. 1987, pp. 97-109.
Nasrabadi, N. M. et al., "Hierarchical Block Truncation Coding of Digital HDTV Images", IEEE Transactions on Consumer Electronics, vol. 36, No. 3, Aug. 1990, pp. 254-261.
"Digital Picture Processing (Second Edition)", Azriel Rosenfeld and Avinash G. Kak, vol. 1, pp. 116-204 (Compression).

Affiliated with

Also associated with

Rating

Image compressing method compressing an image into a compressed does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image compressing method compressing an image into a compressed , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image compressing method compressing an image into a compressed will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1786889