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Definition of "cross luminance" |
NTSC video artifact that causes chrominance information present in the decoded luma signal (chrominance crossed into luminance). Cross luminance has the appearance similar to a zipper caused by the color subcarrier. Television receivers that use a line comb filter to separate luma and chroma signals have cross-luminance components appearing on sharp horizontal edges. Television receivers that use a band-pass filter for luma–chroma separation have crosschrominance components appearing on sharp vertical edges. |
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