Method for determining dark condition and method for...

Details Method for determining dark condition and method for... Method for determining dark condition and method for...

2005-03-29

2008-08-05

LaRose, Colin (Department: 2624)

Image analysis

Color image processing

Color correction

C382S274000, C382S300000

Reexamination Certificate

active

07409084

ABSTRACT:
Disclosed are a method for determining a dark condition in an image sensor to prevent a color noise and a method for interpolating colors. The present invention forms a window with a size of 5×5 array and determines a local color distribution based on a center pixel by using the window with the size of 5×5 array, thereby determining a dark condition with respect to the local color distribution. Thus, it is possible not to degrade chroma with respect to a whole image but locally degrade chroma, thereby producing a black and white image. Through differently and locally performing a color interpolation according to a dark condition determination, it is possible to correct an error of an imperfect black possibly generated during an expression of an imperfect black and white image due to the color interpolation and to reduce a color noise in the corresponding portion.

REFERENCES:
patent: 5097335 (1992-03-01), Cok
patent: 6388706 (2002-05-01), Takizawa et al.
patent: 6577408 (2003-06-01), Rusnack et al.
patent: 7116443 (2006-10-01), Handley et al.
patent: 2003/0020932 (2003-01-01), Youngers
patent: 2003/0020933 (2003-01-01), Youngers
patent: 2005/0238250 (2005-10-01), Jo
patent: 10-178650 (1998-06-01), None

Affiliated with

Also associated with

Rating

Method for determining dark condition and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining dark condition and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining dark condition and method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4016594