Since interlaced filtering simply splits the video into 2 streams/fields, does NV vary its "adaptive filtration" independently for each field ? I ask because I have found that it is not unusual for old VHS tapes to have one field that is noisier than the other (even after the playback VCR heads have been cleaned) presumably because the recording VCR had one clogged head.
If not, please consider implementing per-field adaptive filtration.
Adaptive filtration for interlaced video
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