Image processing device for correcting an error in a multilevel

Details Image processing device for correcting an error in a multilevel Image processing device for correcting an error in a multilevel

1994-02-24

1996-01-02

Reinhart, Mark J.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

358298, H04N 121

Patent

active

054812933

ABSTRACT:
An image processor comprises a correction unit for correcting an input image signal in accordance with a correction signal, a multilevel coding unit for converting the corrected image signal into a multilevel signal having a level corresponding to one of the gradation levels of a printer, a converter for converting the multilevel signal into a reflectance signal corresponding to the printing characteristics of the printer, and an error calculating unit for calculating a difference between the corrected image signal and the reflectance signal, the difference being applied to the correction unit as the correction signal. Although no gamma corrections are made on pixel signals, an image can be printed with its gradations reproduced fully regardless of the use of a simple conversion table.

REFERENCES:
patent: 5077615 (1991-12-01), Tsuji
Floyd et al., "An Adaptive Algorithm for Spatial Greyscale", Proceeding of the SID, vol. 17, pp. 75-77 (1976).

Affiliated with

Also associated with

Rating

Image processing device for correcting an error in a multilevel 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 processing device for correcting an error in a multilevel , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing device for correcting an error in a multilevel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-238711