摘要 |
A method of encoding video signals includes obtaining, averaging, offsetting, and replacing steps. In the obtaining step, a first value comprising a value of a video characteristic for a first portion of a first video signal and a second value comprising a value of the video characteristic for a second portion of a second video signal are obtained. In the averaging step, the first value and the second value are averaged to obtain an average value. In the offsetting step, the average value is offset by a first predetermined offset to obtain a first offset value and the average value is offset by a second predetermined offset to obtain a second offset value. In the replacing step, the first value is replaced with the first offset value on the first signal and the second value is replaced with the second offset value on the second video signal.
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