Image editing system and method having improved multi-dimensional editing controls

Patent 5270806 Issued on December 14, 1993. Estimated Expiration Date:

October 7, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

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Inventors

Assignee

Xerox Corporation

Application

No. 772719 filed on 10/07/1991

US Classes:

358/500, NATURAL COLOR FACSIMILE345/589, Color or intensity345/594, Using GUI345/634, Image based345/690, Intensity or color driving control (e.g., gray scale)715/974SLIDER CONTROL AS ON-SCREEN OBJECT IN OPERATOR INTERFACE

Examiners

Primary: Brinich, Stephen

Attorney, Agent or Firm

Finnegan, Henderson, Farabow, Garrett & Dunner

International Class

G09G 001/16

Abstract

An image editor includes a pixel buffer for storing color data for an image to be edited. A monitor screen displays the image and an active area having a graphic that represents two color descriptor variables. A pair of overlays controls the respective color descriptor variables singly or together. In one embodiment, the active area is a circle with a color wheel about which hue varies angularly and along the radius of which chroma varies. A radial overlay line controls hue and a concentric radially movable ring controls chroma. In another embodiment among others, the active area is a square with a checkerboard graphic. Black and white squares within the checkerboard indicate increasing brightness in the vertically upward direction and increasing contrast in the rightward horizontal direction. Horizontal and vertical hairline overlays control the brightness and contrast, respectively.