Method for quantizing color image data by minimizing least squar

Details Method for quantizing color image data by minimizing least squar Method for quantizing color image data by minimizing least squar

1995-08-04

1997-11-04

Boudreau, Leo

Image analysis

Image compression or coding

Quantization

382162, 382166, 345199, 345155, G06K 946, G09G 506

Patent

active

056848978

ABSTRACT:
A method of condensing color image data in an image processing system so as to simplify operations while reducing errors in the condensation.
The method includes, by computer, generating electrical signals corresponding to color image data representative of a physical image; associating an electrical signal corresponding to a representative code with portions of the signals representative of data in the color image data corresponding to each of the pixels; grouping together electrical signals representative of pixels having identical representative codes to form at least one group; assigning to the representative code for each of the at least one group a condensed pixel representable by the representative code for that group; and setting an electrical signal portion corresponding to each pixel in that group equal to an electrical signal representative of a pixel corresponding to the condensed pixel.

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