Picture processing apparatus

Details Picture processing apparatus Picture processing apparatus

1991-06-26

1993-09-07

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358460, 358461, 358465, 358466, 358467, H04N 140

Patent

active

052434451

ABSTRACT:
A picture processing apparatus with a texture elimination capability which is applied to a facsimile. The apparatus includes an input image sensor for inputting an analog signal by scanning a document containing a character region and a graphic region, an analog-to-digital converter for converting the analog signal into multilevel digital data, a region segmentation part for determining whether each data of the multilevel digital data is included in the graphic region, a binary coding part for binary coding the multilevel digital data through an error diffusion process and for supplying the binary-coded data to an output part, and a weighting part for assigning weights to the multilevel digital data at given intervals therebetween when the multilevel digital data is determined as being included in the graphic region and for supplying the weighted multilevel digital data to the binary coding part, so that the weighted multilevel digital data are binary-coded through an error diffusion process and undesired texture is eliminated.

REFERENCES:
patent: 4554593 (1985-11-01), Fox et al.
patent: 4668995 (1987-05-01), Chen et al.
patent: 4856075 (1989-08-01), Smith
patent: 5121447 (1992-06-01), Tanioka et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-491956