04641267 is referenced by 14 patents and cites 9 patents.

In a radiation image system wherein a stimulable phosphor carrying a radiation image stored therein is exposed to stimulating rays which cause it to emit light in proportion to the radiation energy stored, and the emitted light is detected and converted to an electric signal which is processed to reproduce a visible image, several reference gradation correction curves are created on an orthogonal system of signal level-optical density coordinates. One of the reference curves is selected and rotated around a point on the reference curve on the coordinate system, and/or parallel-shifted on the coordinate system to obtain a desired gradation correction curve.

Title
Gradation correction curve creating method and apparatus
Application Number
6/547620
Publication Number
4641267
Application Date
November 1, 1983
Publication Date
February 3, 1987
Inventor
Nobuaki Higashi
Kanagawa
JP
Hiroshi Tanaka
Kanagawa
JP
Eiichi Asai
Kanagawa
JP
Agent
Sughrue Mion Zinn Macpeak & Seas
Assignee
Fuji Photo Film
JP
IPC
H01Q 21/00
H04N 1/40
G06G 7/60
G06F 15/42
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