Method of extracting feature image data and method of extracting

Details Method of extracting feature image data and method of extracting Method of extracting feature image data and method of extracting

1992-05-21

1994-05-03

Ro, Bentsu

Facsimile and static presentation processing

Natural color facsimile

355 40, G03B 2772

Patent

active

053092287

ABSTRACT:
A color original image is divided into many picture elements and each picture element is resolved into three colors of red, green, and blue lights to photometrically measure them and a histogram of hue values is obtained in accordance with the data obtained through photometry. The obtained histogram is divided into mountains, it is judged which divided mountain each picture element of the color original image belongs to in order to classify the picture elements into groups corresponding to the divided mountains and divide the color original image every group. Then, at least one of the divided regions is selected to extract the data for the selected region as feature image data.

REFERENCES:
patent: 4613897 (1986-09-01), Stansfield
patent: 4805016 (1989-02-01), Kato
patent: 4984013 (1991-01-01), Terashita
patent: 5204948 (1993-04-01), Kato
patent: 5206918 (1993-04-01), Levene

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