Image processing apparatus and method for adjusting a...

Details Image processing apparatus and method for adjusting a... Image processing apparatus and method for adjusting a...

2011-07-26

2011-07-26

Perungavoor, Sath V (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S162000, C382S254000, C345S589000, C345S600000, C345S601000, C348S630000, C348S631000, C348S645000, C348S649000, C348S687000, C358S003230, C358S518000, C358S520000

Reexamination Certificate

active

07986852

ABSTRACT:
The invention discloses an image processing apparatus for adjusting the lightness of an input image which has a hue. The image processing apparatus includes a look-up table, a processing unit and an adder. The look-up table records M lightness, N hues and M*N corresponding lightness offset values. The processing unit is used for storing the look-up table and for selecting a corresponding lightness offset value from the look-up table according to the lightness and the hue of the input image. The adder is coupled to the processing unit and used for adding the selected lightness offset value to the lightness of the input image, so as to obtain an adjusted lightness. Accordingly, the image quality is improved.

REFERENCES:
patent: 5060060 (1991-10-01), Udagawa et al.
patent: 5355225 (1994-10-01), Bachmann et al.
patent: 5995655 (1999-11-01), Lockett et al.
patent: 6172681 (2001-01-01), Ueda
patent: 7177465 (2007-02-01), Takahira
patent: 7193659 (2007-03-01), Huang et al.
patent: 2002/0085750 (2002-07-01), Hoshuyama
patent: 2003/0012433 (2003-01-01), Gruzdev et al.
patent: 2004/0120576 (2004-06-01), Kim

Affiliated with

Also associated with

Rating

Image processing apparatus and method for adjusting a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image processing apparatus and method for adjusting a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing apparatus and method for adjusting a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2621243