Method and system for storing error values for an image conversi

Details Method and system for storing error values for an image conversi Method and system for storing error values for an image conversi

1997-11-26

2000-11-07

Mehta, Bhavesh

Image analysis

Image compression or coding

Quantization

382254, 358447, 358455, 358465, G06K 936, H04N 140

Patent

active

061447757

ABSTRACT:
A method and system implements a dynamic error diffusion process. A grey level value representing a pixel is received. An image segmentation circuit determines an image characteristic of the pixel being processed. A threshold circuit thresholds the grey level value (pixel) and generates an error value as a result of the threshold process. A portion of the error value is diffused to adjacent pixels on a next scanline. The distribution of this error value is dynamic in that different sets of weighting coefficients are used based the image characteristic of the processed pixel. One set of coefficients are utilized in processing a pixel having a first image characteristic, and a second set of coefficients are utilized in processing a pixel having a second image characteristic.

REFERENCES:
patent: 5258854 (1993-11-01), Eschbach
patent: 5696601 (1997-12-01), Metcalfe et al.

Affiliated with

Also associated with

Rating

Method and system for storing error values for an image conversi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for storing error values for an image conversi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for storing error values for an image conversi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1649855