Shading-compensation method and device in image processing

Details Shading-compensation method and device in image processing Shading-compensation method and device in image processing

1991-01-28

1993-11-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358463, H04N 140

Patent

active

052608093

ABSTRACT:
In an image processing system in which shading-compensation for eliminating shading-distortion contained inevitably in image light directed to an image sensor via optical systems is carried out, at least two latch unit for temporarily storing comparative values obtained by scanning white and black image planes are disposed between memory means for the comparative values and a processing unit for compensating image signals obtained as a result of optically scanning a given objective image. Since the comparative value of the pixel subsequent to a pixel in process is rendered on standby in one of the latch units in preparation for the image processing for the subsequent pixel, the processing time can be remarkably increased consequently to speed up the image processing.

REFERENCES:
patent: 4806780 (1989-02-01), Yamamoto et al.
patent: 4807045 (1989-02-01), Shimano

Affiliated with

Also associated with

Rating

Shading-compensation method and device in image processing 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-compensation method and device in image processing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shading-compensation method and device in image processing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1147105