Continuous-tone printer with edge enhancement

Details Continuous-tone printer with edge enhancement Continuous-tone printer with edge enhancement

1994-08-18

1997-04-08

Frahm, Eric

Facsimile and static presentation processing

Facsimile

Recording apparatus

358448, 358530, 358532, H04N 140, H04N 1409, H04N 146, H04N 158

Patent

active

056193343

ABSTRACT:
A continuous-tone printer includes print enhancement circuitry for producing smooth edges responsive to continuous-tone pixel data. Translation circuitry translates the continuous-tone data into single-tone data responsive to a predetermined threshold. The single-tone data is stored in a memory coupled to edge enhancement circuitry, which may be similar to that used in prior enhancement circuits. For a given pixel, either the enhanced pixel data from the edge enhancement circuit or the continuous-tone data may be passed to print edges, based on the value of the continuous-tone pixel relative to upper and lower quantization values.

REFERENCES:
patent: 5041848 (1991-08-01), Gilbert et al.
patent: 5122884 (1992-06-01), Gilbert et al.
patent: 5193008 (1993-03-01), Frazier et al.
patent: 5212559 (1993-05-01), Gilbert et al.
patent: 5243695 (1993-09-01), Russell et al.
patent: 5287209 (1994-02-01), Hiratsuka et al.
patent: 5359433 (1994-10-01), Nagase et al.
patent: 5387985 (1995-02-01), Loce et al.

Affiliated with

Also associated with

Rating

Continuous-tone printer with edge enhancement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Continuous-tone printer with edge enhancement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous-tone printer with edge enhancement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2400811