Color temperature conversion system and method using the same

Details Color temperature conversion system and method using the same Color temperature conversion system and method using the same

2006-04-04

2006-04-04

Do, Anh Hong (Department: 2627)

Image analysis

Color image processing

C382S167000

Reexamination Certificate

active

07024034

ABSTRACT:
A color temperature conversion system and a method thereof are capable of converting the color temperature to the color temperature almost identical with the color temperature obtained by the Robertson algorithm. The color temperature conversion system has an XYZ conversion unit for converting an RGB signal of input video data into an XYZ value in a CIE coordinate system, a chroma calculating unit for calculating X and Y coordinate values of a pixel corresponding to the converted XYZ value, an offset compensate unit for compensating the X coordinate value calculated by the chroma calculating unit based on an X coordinate value difference and a Y coordinate value difference of a color temperature on a white point line of the CIE coordinate system and an actual color temperature of the video data, in the case the color temperature is calculated based on the calculated X coordinate value, a color temperature calculating unit for calculating the color temperature of the video data that is inputted based on the compensated X coordinate value, and a color temperature conversion unit for converting the color temperature calculated by the color temperature calculating unit into a predetermined color temperature and outputting the converted predetermined color temperature.

REFERENCES:
patent: 5502580 (1996-03-01), Yoda et al.
patent: 5606432 (1997-02-01), Ohtsuka et al.
patent: 5748858 (1998-05-01), Ohtsuka et al.
Chan et al., “Video CCD Based Portable Digital Still Camera”, IEEE vol. 43, No. 3, Aug. 1995, pp. 455-459.

Affiliated with

Also associated with

Rating

Color temperature conversion system and method using the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color temperature conversion system and method using the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color temperature conversion system and method using the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3620195