white compression

white compression: In television technology, the reduction of gain applied to light areas in picture signal (corresponding to the midrange light value in the picture). Note: The gain in signal amplitude is small compared to the total peak-to-peak picture signal. Measuring the differential gain yields a quantitative evaluation of this effect. The effect of white compression beyond bandwidth limiting is a reduction in contrast in the highlights of the picture as seen on the monitor. [After SMPTE]

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