Image data compression system and facsimile machine employing th

Details Image data compression system and facsimile machine employing th Image data compression system and facsimile machine employing th

1991-08-08

1993-04-13

Brinich, Stephen

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

3582611, H04N 141

Patent

active

052027716

ABSTRACT:
An image data compression system detects from an input image data a transition edge of a picture element on a scanning line where the picture element undergoes a transition from white to black or vice versa. A direction change quantity between a direction of a transition edge of a picture element on an object scanning line and a direction of a transition edge of a picture element on a reference scanning line which precedes the object scanning line is detected, and this direction change quantity is coded into a directional change code which is output as a compressed image data of the input image data.

REFERENCES:
patent: 4839738 (1989-06-01), Kaku et al.
patent: 4860114 (1989-08-01), Horikawa et al.

Affiliated with

Also associated with

Rating

Image data compression system and facsimile machine employing th 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 data compression system and facsimile machine employing th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image data compression system and facsimile machine employing th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159230