Contrast correction device

Details Contrast correction device Contrast correction device

H - Electricity

04

N

H04N 5/57 (2006.01) H04N 5/20 (2006.01)

Patent

CA 2043325

The present invention relates to a contrast correction device for correcting the contrast of an image formed by video signals. The device includes a brightness/darkness detecting circuit for detecting a tone level of the image and for producing a bright signal when the tone level is greater than a predetermined brightness, and a dark signal when the tone level is less than a predetermined darkness. A correction circuit is provided for correcting a luminance signal by a negative gamma correction in response to the bright signal, and a positive gamma correction in response to the dark signal. Thus, the contrast of bright areas in the image are enhanced when the bright signal is produced, and the same are suppressed when the dark signal is produced.

Affiliated with

Also associated with

Rating

Contrast correction device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Contrast correction device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contrast correction device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1682360