Image processing apparatus for correcting color space coordinate

Details Image processing apparatus for correcting color space coordinate Image processing apparatus for correcting color space coordinate

1996-08-22

2000-02-29

Powell, Mark R.

Computer graphics processing and selective visual display system

Computer graphics processing

Graph generating

345440, 345150, 382167, G06T 1550, G06T 1180

Patent

active

060315431

ABSTRACT:
Color information of a color image is represented by the Lab color space. A user can change hue by moving the position of a reference circle displayed on the a*b* plane in the Lab color space and change saturation by changing the size of the reference circle. The color information of the color image is changed with changes in the reference circle, allowing the user to conjecture changes in the color image visually and make color corrections easily and quickly.

REFERENCES:
patent: 5012333 (1991-04-01), Lee et al.
patent: 5270806 (1993-12-01), Venable et al.
patent: 5416890 (1995-05-01), Beretta et al.
Wordperfect Draw, Wordperfect Corp., Fill Colour Control Method, Software issued Apr. 20, 1994.
Image Assistant, 1990-93, Image Software Inc., Colour Balance Control Method, Gradation Curve Control and Colour Wheel Hue/Saturation Selection Method.
"Corel Draw", Corel Corporation, pp. 385 and 389, 1993.
Adobe Photoshop User Guide, Adobe Systems Inc., p. 131, 1993.

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