Method of highlighting subtle contrast in graphical images

Details Method of highlighting subtle contrast in graphical images Method of highlighting subtle contrast in graphical images

1989-03-21

1991-08-20

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

36441316, 36441322, 382 6, G06N 938

Patent

active

050420771

ABSTRACT:
A display for medical diagnostic equipment produces an image of the subject under study and a histogram image which indicates the distribution of brightness levels of the image pixels. Using a trackball, the operator manipulates a contrast window which is displayed on the histogram and which enables the operator to select brightness ranges in the image for contrast enhancement.

REFERENCES:
patent: 3805239 (1974-04-01), Watanabe
patent: 4189775 (1980-02-01), Inooye et al.
patent: 4302672 (1981-11-01), Kato et al.
patent: 4317179 (1982-02-01), Kato et al.
patent: 4333145 (1982-06-01), Heusher et al.
patent: 4495491 (1985-02-01), Postl
patent: 4533947 (1985-08-01), Smith
patent: 4644582 (1987-02-01), Morishita et al.
Hans Wiedemann: "Bildverarbeitung auf dem PC" (Image Processing by Personal Computer) "der elektronker" No. 8, 1987, pp. 69 Through 75 and Translation.

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