The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2009
Filed:
Apr. 18, 2006
Hsin-hung Lee, Fongshan, TW;
Hsu-hung Chen, Sanchung, TW;
Hsin-Hung Lee, Fongshan, TW;
Hsu-Hung Chen, Sanchung, TW;
Quanta Computer, Inc., Tao Yuan Shien, TW;
Abstract
The invention discloses an image processing apparatus for adjusting the saturation of an input image. The input image also has a lightness and a hue. The image processing apparatus includes a look-up table, a processing unit, and a multiplier. The look-up table is used for recording M lightness ranges, N hue ranges, and M*N corresponding gains. The processing unit is used for storing the look-up table and, according to the look-up table, for judging that the lightness of the input image is located in which lightness range, and the hue is located in which hue range, so as to determine a corresponding gain from the gains. The multiplier is coupled to the processing unit and used for multiplying the saturation of the input image by the corresponding gain. Accordingly, the image quality is improved.