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Video key edge generator for increasing the size of an associated border, drop shadow and/or outline
Video key edge generator for increasing the size of an associated border, drop shadow and/or outline
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机译:视频按键边缘生成器,用于增加相关边框,阴影和/或轮廓的大小
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摘要
Conventional border, drop shadow and/or matte outline generating signals are selectively gated through an offset amplifier of less than unity gain and then fed back into the existing delay lines, to selectively modify the horizontal and vertical trailing edge of the waveform generated by the loop, which, in turn, modifies accordingly the selectively switched composite video signal, i.e., provides for selectively increasing the size and/or varying the configuration of the luminance key signals.
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