Shading correcting method enabling prevention of effect of noise

Details Shading correcting method enabling prevention of effect of noise Shading correcting method enabling prevention of effect of noise

1987-08-03

1989-06-20

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

353284, 353292, H04N 140

Patent

active

048413763

ABSTRACT:
A method of and apparatus for shading correction wherein a reference voltage of an A/D converter converting an image signal into a digital signal is set as a shading correction signal. The image signal and the shading correction signal are designed to be of different level from each other in the timing out of the effective period of the image signal. The shading correction signal is outputted in the timing during the effective period of the image signal and the reference voltage is outputted in the timing out of the effective period of the image signal.

REFERENCES:
patent: 4237495 (1980-12-01), Yamamoto

Affiliated with

Also associated with

Rating

Shading correcting method enabling prevention of effect of noise does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shading correcting method enabling prevention of effect of noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shading correcting method enabling prevention of effect of noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-529142