Anisotropic stochastic screen

Details Anisotropic stochastic screen Anisotropic stochastic screen

2006-11-21

2006-11-21

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003190, C358S003200, C358S003260, C358S003280

Reexamination Certificate

active

07139101

ABSTRACT:
A system and method for the halftoning of gray scale images by utilizing a pixel-by-pixel comparison of the image against an anisotropic stochastic screen is disclosed. The anisotropic stochastic screen comprises a non-deterministic, non-white noise function which, when thresholded, is designed to produce anisotropic dot patterns having a power spectrum characterized as having negligible low frequency components and a high-frequency region which has an absence of stronger dominant spikes.

REFERENCES:
patent: 4553173 (1985-11-01), Kawamura
patent: 4918622 (1990-04-01), Granger et al.
patent: 5111310 (1992-05-01), Parker et al.
patent: 5323247 (1994-06-01), Parker et al.
patent: 5341228 (1994-08-01), Parker et al.
patent: 5477305 (1995-12-01), Parker et al.
patent: 5543941 (1996-08-01), Parker et al.
patent: 5673121 (1997-09-01), Wang
patent: 5708518 (1998-01-01), Parker et al.
patent: 5726772 (1998-03-01), Parker et al.
patent: 6278802 (2001-08-01), Delabastita et al.
patent: 6351319 (2002-02-01), Schweid et al.
patent: 6606168 (2003-08-01), Rylander
patent: 0 963 105 (1999-08-01), None
patent: 1482722 (2004-12-01), None
Meng Yao and Kevin J. Parker, “Modified Approach to the Construction of a Blue Noise Mask”, Journal of Electronic Imaging, Jan. 1994, vol. 3 (1), pp. 92-97.
Theophano Mitsa and Kevin J. Parker, “Digital Halftoning Using a Blue Noise Mask”, SPIE vol. 1452 Image Processing Algorithms and Techniques II (1991), pp. 47-56.

Affiliated with

Also associated with

Rating

Anisotropic stochastic screen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anisotropic stochastic screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropic stochastic screen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3635210