Image signal processing apparatus

Details Image signal processing apparatus Image signal processing apparatus

1993-03-18

1996-09-10

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358443, G02B 2608, G03B 2156

Patent

active

055550959

ABSTRACT:
An image signal processing apparatus to realize a signal processing system and apparatus constitution, where an image signal inputted using a photoelectric conversion element, such as a CCD or a contact type image sensor, is obtained in a circuit of small scale with high picture quality. In order to solve various problems, data width of a signal referred to in a shading corrector, an MTF corrector and an error diffusion circuit is made b+f+j.ltoreq.8 per one pixel, the error component commonly possessed by plural pixels (N pixels) in the error diffusion circuit is made b+f+j'.ltoreq.8, the data width per one pixel being j'=j/N. Image signal processing is realized in this constitution, whereby the data width of a signal referred to in respective signal processings is reduced, and an image signal satisfying the accuracy of signal processing sufficiently and having a high picture quality can be obtained. For example, when a circuit is constituted by an LSI, the memory section can be easily mounted on the same LSI. A memory required in the image signal processing can be made 8 bits per one pixel and a cheap memory constitution can be utilized.

REFERENCES:
patent: 5091965 (1992-02-01), Kobayashi et al.
patent: 5130822 (1992-07-01), Nagata et al.
patent: 5262873 (1993-11-01), Ishizuka

Affiliated with

Also associated with

Rating

Image signal processing apparatus 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 signal processing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image signal processing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1324987